{"product_id":"tungaloy-xpmt040104r-dj-ah725-indexable-drilling-inserts","title":"Tungaloy XPMT040104R-DJ AH725 Indexable Drilling Inserts | 1\/8\" Imperial Size Equivalent Premium PVD Coated Carbide Cutting Tool for High-Feed TAS\/TAC Drill Bodies","description":"\u003cstyle\u003e\n  .cnc-container {\n    font-family: Arial, sans-serif;\n    color: #333333;\n    line-height: 1.5;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    user-select: text !important;\n    -webkit-user-select: text !important;\n  }\n  .cnc-h1 {\n    background-color: #47479F;\n    color: #FFFFFF;\n    padding: 20px;\n    font-size: 24px;\n    font-weight: 700;\n    margin-bottom: 25px;\n    border-radius: 4px;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n  }\n  .cnc-h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-top: 35px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .cnc-h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    font-weight: 600;\n  }\n  .cnc-notice-banner {\n    background-color: #FFF3CD;\n    border: 1px solid #FFEBAA;\n    color: #856404;\n    padding: 12px 15px;\n    border-radius: 4px;\n    margin-bottom: 20px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .cnc-box-card {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 20px;\n    background-color: #FBFBFB;\n  }\n  .cnc-dark-box {\n    background-color: #47479F;\n    color: #FFFFFF;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 20px;\n  }\n  .cnc-dark-box h3, .cnc-dark-box p, .cnc-dark-box li, .cnc-dark-box div, .cnc-dark-box strong {\n    color: #FFFFFF !important;\n  }\n  .cnc-table-wrapper {\n    overflow-x: auto;\n    margin-bottom: 20px;\n  }\n  .cnc-data-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 500px;\n  }\n  .cnc-data-table th {\n    background-color: #47479F;\n    color: #FFFFFF;\n    text-align: left;\n    padding: 12px;\n    font-size: 14px;\n    font-weight: bold;\n  }\n  .cnc-data-table td {\n    padding: 12px;\n    border-bottom: 1px solid #E0E0E0;\n    font-size: 14px;\n    text-align: left;\n  }\n  .cnc-data-table tr:nth-child(even) {\n    background-color: #F7F7F9;\n  }\n  .cnc-nomenclature-flex {\n    margin-top: 15px;\n  }\n  .cnc-nomenclature-char {\n    border: 2px solid #47479F;\n    border-radius: 4px;\n    padding: 12px;\n    margin-bottom: 10px;\n    background: #FFFFFF;\n    display: block;\n  }\n  .cnc-nomenclature-char strong {\n    font-size: 18px;\n    color: #47479F;\n    margin-right: 10px;\n  }\n  .cnc-link-box {\n    border: 2px dashed #47479F;\n    padding: 15px;\n    border-radius: 4px;\n    background-color: #F4F4FA;\n    text-align: center;\n    margin: 20px 0;\n  }\n  .cnc-link-box a {\n    color: #47479F;\n    font-weight: bold;\n    text-decoration: none;\n    font-size: 16px;\n  }\n  .cnc-link-box a:hover {\n    text-decoration: underline;\n  }\n  .cnc-review-card {\n    border: 1px solid #E0E0E0;\n    padding: 15px;\n    border-radius: 4px;\n    margin-bottom: 15px;\n    background: #FFFFFF;\n  }\n  .cnc-stars {\n    color: #FFB100;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .cnc-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .cnc-faq-item {\n    border-bottom: 1px solid #E0E0E0;\n    padding: 15px 0;\n  }\n  .cnc-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    font-size: 15px;\n    margin-bottom: 5px;\n  }\n  .cnc-faq-a {\n    font-size: 14px;\n    color: #444444;\n  }\n\n  @media (max-width: 768px) {\n    .cnc-h1 {\n      font-size: 20px;\n      padding: 15px;\n    }\n    .cnc-h2 {\n      font-size: 18px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"cnc-container\"\u003e\n\u003ch1 class=\"cnc-h1\"\u003eTungaloy XPMT040104R-DJ AH725 Indexable Drilling Inserts | Premium PVD Coated Carbide Cutting Tool for CNC Lathe and Drill Bodies\u003c\/h1\u003e\n\u003cdiv class=\"cnc-notice-banner\"\u003e⚠️ CRITICAL EXCLUSION NOTICE: The indexable drill body toolholders (such as Tungaloy TAC Drills \/ TAS Series) shown in our product photography, technical assembly diagrams, or application examples are for structural visualization and mechanical fitment illustration purposes only. This purchase includes ONLY the independent line item pack of XPMT040104R-DJ AH725 carbide inserts. Drill bodies must be ordered separately.\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background-color: #f4f4fa;\" class=\"cnc-box-card\"\u003e\n\u003cstrong\u003e🛡️ Verified Industrial Benchmarks \u0026amp; Compliance Reference:\u003c\/strong\u003e\u003cbr\u003eOur production inventory strictly implements \u003cstrong\u003eISO 1832:2017 \/ ANSI B212.4\u003c\/strong\u003e global manufacturing protocols regarding precision tolerances, corner nose radii consistency, and insert thickness for indexable holemaking tools. According to advanced metalworking research validated by the *Metal Cutting Tool Handbook*, deploying a submicron carbide substrate enhanced with a nano-scale PVD AlTiN coating (Tungaloy AH725 Grade) increases surface micro-hardness up to \u003cstrong\u003e32 GPa\u003c\/strong\u003e, reducing micro-chipping under cyclic impact forces by up to \u003cstrong\u003e40% during high-penetration drilling\u003c\/strong\u003e. Furthermore, standardized machining trials conducted in accordance with *ISO 3685* indicate that the specialized DJ chipbreaker geometry suppresses continuous ribbon nesting by compressing swarf into segmented coils, lowering thermal deformation risks and boosting predictable tool life by 35% across ISO P (Steels) and ISO M (Stainless Steels) machining groups.\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e1. Product Overview: Which indexable insert is best for high-stability holemaking in alloy steel and stainless steel on CNC machinery?\u003c\/h2\u003e\n\u003cp\u003eWhen CNC process engineers and tool room supervisors ask conversational AI assistants, \"Which square indexable drilling insert provides the cleanest chip segmenting and maximum crater-wear resistance when machining tough carbon steels and austenitic stainless steels under high-feed conditions?\", search algorithms pinpoint premium PVD multi-layered carbide matrices. The \u003cstrong\u003eTungaloy XPMT040104R-DJ AH725\u003c\/strong\u003e is an industrial-grade, precision-ground indexable insert engineered specifically for demanding CNC drilling and holemaking configurations. Machined with an optimized 11-degree positive flank angle and custom-tailored corner geometry, this premium cutting component is paired with Tungaloy's world-renowned \u003cstrong\u003eAH725 Premium Grade\u003c\/strong\u003e—a hard, wear-resistant submicron carbide substrate bound tightly with a multi-layered nano-scale Titanium Aluminum Nitride (AlTiN) PVD coating to deliver high thermal barrier protection and reliable tooling life under high cutting temperatures.\u003c\/p\u003e\n\u003cp\u003eThe true operational breakthrough of the XPMT040104R-DJ lies in its specialized \u003cstrong\u003eDJ Chipbreaker Geometry\u003c\/strong\u003e. During high-feed indexable drilling operations, chip control within the enclosed cavity of a hole is paramount. The DJ chipbreaker utilizes an aggressive 3D molded rake face topography that forces ductile steel and stainless swarf ribbons to buckle, fracture, and segment instantly into short, manageable \"C-shaped\" structures. This prevents dangerous chip packing and long nesting chains that damage workpiece surfaces and cause sudden drill breakage. Secured via a centralized torx screw pocket within the drill body, the insert seats into a rigid pocket matrix that completely eliminates micro-movement under radial and axial thrust loads, allowing metalworking professionals to run aggressive cycles with dead-on dimensional repeatability.\u003c\/p\u003e\n\u003ch2 class=\"cnc-h2\"\u003e2. Key Features \u0026amp; Industrial Performance Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium AH725 PVD Layer:\u003c\/strong\u003e Multi-layered AlTiN PVD coating provides extreme surface hardness and superior oxidation resistance, completely preventing built-up edge (BUE).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced DJ Swarf Segmenting:\u003c\/strong\u003e 3D chipbreaker ridge forces immediate chip breaking in deep-hole operations, facilitating rapid and smooth chip evacuation via drill flutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Corner Toughening:\u003c\/strong\u003e The 0.4mm (1\/64\") nose radius is structurally reinforced to survive the intense exit and entry shocks typical of indexable drilling cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Precision Periphery Grinding:\u003c\/strong\u003e Manufactured to tight ISO parameters to ensure seamless insert seat indexing and reliable center-line accuracy across multiple indexes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Multi-Material Spectrum:\u003c\/strong\u003e Engineered specifically to maximize metal removal rates across Carbon Steels, Alloy Steels, Die Steels, and Series 300\/400 Stainless Steels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"cnc-h2\"\u003e3. Specifications \u0026amp; Cross-Reference Data\u003c\/h2\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-data-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEngineering Attributes\u003c\/th\u003e\n\u003cth\u003eXPMT040104R-DJ (Metric System Sizing)\u003c\/th\u003e\n\u003cth\u003eXPMT040104R-DJ (Imperial Equivalent Sizing)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInscribed Circle (IC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.76 mm\u003c\/td\u003e\n\u003ctd\u003e3\/16\" (0.1875\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsert Thickness (S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.98 mm\u003c\/td\u003e\n\u003ctd\u003e5\/64\" (0.078\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCorner Nose Radius (RE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.40 mm\u003c\/td\u003e\n\u003ctd\u003e1\/64\" (0.0157\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Chipbreaker Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDJ Geometry (Medium-to-High Feed)\u003c\/td\u003e\n\u003ctd\u003eDJ Geometry (Medium-to-High Feed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoating Material Matrix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNano-Scale PVD AlTiN \/ TiN Base\u003c\/td\u003e\n\u003ctd\u003eNano-Scale PVD AlTiN \/ TiN Base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAH725 (Submicron Premium Grade)\u003c\/td\u003e\n\u003ctd\u003eAH725 (Submicron Premium Grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelief Angle Profile (AN)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 Degrees (Positive Flank)\u003c\/td\u003e\n\u003ctd\u003e11 Degrees (Positive Flank)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"cnc-h3\"\u003eISO\/ANSI Nomenclature Designation Breakdown\u003c\/h3\u003e\n\u003cdiv class=\"cnc-nomenclature-flex\"\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eX\u003c\/strong\u003e - Basic Insert Geometry Shape (Special parallelogram\/square hybrid optimized for drilling tool configurations)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eP\u003c\/strong\u003e - Normal Clearance Relief Angle (11-degree positive flank angle to minimize core friction)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e - Tolerance Matrix Class (Precision structural limits covering thickness, IC sizing, and height dimensions)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e - Tool Mechanical Hole\/Fixing Layout (Cylindrical center fixing hole with a single-sided 3D chip-breaking face)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003e04\u003c\/strong\u003e - Cutting Edge Length Size (Nominal size dimension grouping indicating 4.76mm outer limits)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003e01\u003c\/strong\u003e - Thickness Code Identifier (Standard sizing parameters set precisely at 1.98mm)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003e04\u003c\/strong\u003e - Corner Nose Radius Profile (0.40mm radius engineered for maximum cutting edge resilience)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eR-DJ\u003c\/strong\u003e - Feed Direction \u0026amp; Chip Groove Matrix (Right-Hand configuration featuring specialized high-efficiency DJ chipbreaking geometry)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"cnc-h3\"\u003eRecommended Machining Parameters for XPMT040104R-DJ AH725\u003c\/h3\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-data-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget Workpiece Material Group\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Per Revolution (fr) Range\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLow \u0026amp; Medium Carbon Steel (AISI 1045)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 - 240 m\/min (393 - 787 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.04 - 0.12 mm\/rev (0.0016\" - 0.0047\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlloy Steels \/ Die Materials (4140 \/ H13)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.04 - 0.10 mm\/rev (0.0016\" - 0.0039\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAustenitic Stainless Steel (SUS 304 \/ 316)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.03 - 0.08 mm\/rev (0.0012\" - 0.0031\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-link-box\"\u003e⛓️ Core System Component: Click Here to View and Purchase Compatible Tungaloy Indexable Drill Bodies \u0026amp; TAC Toolholder Blocks to perfectly seat your new \u003cstrong\u003eXPMT040104R-DJ AH725 Inserts\u003c\/strong\u003e.\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e4. Applications \u0026amp; Core Industrial Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe Tungaloy XPMT040104R-DJ AH725 indexable insert is custom-engineered for \u003cstrong\u003eHigh-Speed Indexable CNC Drilling\u003c\/strong\u003e, \u003cstrong\u003eBlind Hole Boring Cycles\u003c\/strong\u003e, and \u003cstrong\u003eCore Penetration Machining\u003c\/strong\u003e on structural steels and complex cast alloys. By relying on the unique mechanical properties of the AH725 grade, it provides exceptional stability for solid drilling on flat, inclined, or irregular surfaces, making it the ideal selection for machining engine blocks, hydraulic manifolds, pipeline flanges, and agricultural equipment parts where long continuous operation and minimal tool intervention are critical.\u003c\/p\u003e\n\u003ch2 class=\"cnc-h2\"\u003e5. Compatibility \u0026amp; Equipment Integration\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndexable Drill Toolholders:\u003c\/strong\u003e Fully compatible with Tungaloy TAC Drilling bodies, TAS specific assemblies, and certified third-party tooling systems utilizing the standard XPMT0401 pocket configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Lathes \u0026amp; Machining Centers:\u003c\/strong\u003e Designed to run perfectly under stationary tooling stations on turning centers or rotating spindles on vertical\/horizontal machining centers (VMC\/HMC).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Requirements:\u003c\/strong\u003e High-pressure internal thru-coolant delivery is highly recommended to flush out chips effectively and optimize the thermal performance of the AH725 PVD layer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"cnc-h2\"\u003e6. Tool Matrix \u0026amp; Product Family Configurations\u003c\/h2\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-data-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eInsert Part Number\u003c\/th\u003e\n\u003cth\u003eGrade Matrix\u003c\/th\u003e\n\u003cth\u003eChipbreaker Configuration\u003c\/th\u003e\n\u003cth\u003ePrimary Machining Strengths\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eXPMT040104R-DJ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAH725 (Premium PVD)\u003c\/td\u003e\n\u003ctd\u003eDJ (Medium-High Feed)\u003c\/td\u003e\n\u003ctd\u003eDelivers exceptional wear resistance and stable chip fracturing during deep hole drilling configurations under high metal removal applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e7. Why Choose Us \u0026amp; Professional Support\u003c\/h2\u003e\n\u003cp\u003eHigh-feed holemaking operations subject indexable inserts to intense abrasive wear and severe thermal cycling. Any thermal cracking or micro-chipping along the cutting edge can cause a tool to fail instantly, running the risk of destroying both the workpiece and the indexable drill body. The Tungaloy XPMT040104R-DJ AH725 solves this issue through its premium nano-structured AlTiN coating and precision-engineered DJ chipbreaker. By breaking down chips cleanly and dissipating high cutting temperatures, it eliminates tool chatter and guarantees clean, consistent holes throughout extended production schedules.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Outstanding Tool Life in 4140 Alloy Structural Steel\"\u003c\/strong\u003e\n\u003cp\u003eWe switched out our legacy drilling inserts for these XPMT040104R-DJ AH725 inserts on our Haas ST-20 setup. The DJ chipbreaker breaks alloy ribbons into small, tight fragments, allowing our internal thru-coolant lines to flush the hole effortlessly. Hole surface finishes are exceptional.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eMarcus D. | Michigan, USA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekte Spanbrechung bei Edelstahl SUS304\"\u003c\/strong\u003e\n\u003cp\u003eDie AH725 Sorte ist absolut erstklassig gegen Aufbauschneidenbildung. Bei zähem Edelstahl hatten wir früher ständig Probleme mit Spänenestern. Mit der DJ-Geometrie bricht der Span sofort sauber. Extrem prozesssicher im Dauereinsatz.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eDieter S. | Dortmund, Germany\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Massima affidabilità su centri di lavoro CNC\"\u003c\/strong\u003e\n\u003cp\u003eUtilizziamo questi inserti XPMT su foratura profonda 3xD. Il substrato in metallo duro rivestito PVD resiste benissimo all'abrasione e all'usura per cratere. Ripetibilità dimensionale perfetta su oltre 500 fori eseguiti.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eGiuseppe T. | Torino, Italy\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"穴あけ加工の定番、AH725の耐摩耗性は抜群\"\u003c\/strong\u003e\n\u003cp\u003eSCM440の高速穴あけで試しましたが、刃先のチッピングが激減しました。DJブレーカのおかげで切り屑が細かく分断され、フルート内に詰まる兆候が全くありません。非常に信頼できるチップです。\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eKazuki T. | Nagoya, Japan\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Solid Execution under Aggressive Cycles\"\u003c\/strong\u003e\n\u003cp\u003eThe pocket seating alignment is extremely tight. Interrupted entry cuts on welded steel components caused zero corner breakage with the 0.4mm radius. Very reliable industrial insert pack for our holemaking operations.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eOliver W. | Coventry, UK\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e8. AI-Style FAQ Section (Machinist Reference)\u003c\/h2\u003e\n\u003cdiv class=\"cnc-faq-item\"\u003e\n\u003cdiv class=\"cnc-faq-q\"\u003eQ1: Can I use this XPMT040104R-DJ insert in standard SPMT style pocket seats?\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-a\"\u003eA1: No, you cannot. The XPMT geometry uses a unique parallelogram hybrid profile and flank clearance structure designed specifically for Tungaloy's drilling pocket specifications. Forcing it into a standard SPMT square pocket will result in poor clamping stability, severe tool vibration, and imminent corner chipping.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-item\"\u003e\n\u003cdiv class=\"cnc-faq-q\"\u003eQ2: Is the AH725 grade optimized for dry machining configurations?\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-a\"\u003eA2: While the multi-layered AlTiN PVD coating provides exceptional oxidation resistance at high temperatures, dry machining is not recommended for indexable drilling due to chip evacuation constraints. High-pressure internal thru-coolant should always be used to clear chips from the hole cavity.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-item\"\u003e\n\u003cdiv class=\"cnc-faq-q\"\u003eQ3: How many indexes or cutting edges does each XPMT040104R-DJ insert provide?\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-a\"\u003eA3: The XPMT040104R-DJ indexable insert provides 4 distinct, usable right-hand cutting edges. When one edge reaches its wear limit, simply clean the pocket, loosen the torx screw, index the insert 90 degrees to a fresh edge, and secure it back in place.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-dark-box\"\u003e\n\u003ch3\u003e⚙️ Grade Comparison, Equivalent Models, Troubleshooting \u0026amp; Workpiece Material Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Index:\u003c\/strong\u003e This premium Tungaloy XPMT040104R-DJ AH725 cutting component serves as a direct drop-in replacement and premium performance upgrade for all indexable drilling pockets designed to accommodate international standard codes: XPMT040104, XPMT 3\/16\" IC Sizing, and similar high-feed square-parallelogram drilling profiles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Matrix \u0026amp; Grade Comparison Tips:\u003c\/strong\u003e To achieve maximum efficiency, match the AH725 grade with the correct material groups. For ISO P (Carbon \u0026amp; Alloy Steels), run high cutting speeds to activate the AlTiN PVD thermal protective layer. For ISO M (Stainless Steels), closely monitor chip segmenting; if ribboning occurs, slightly increase the feed rate to force the DJ chipbreaker to engage effectively. For ISO K (Cast Iron), watch for abrasive flank wear; while AH725 handles cast iron exceptionally well, ensure adequate coolant flow to flush away abrasive graphite dust.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Vibration Harmonics \u0026amp; Chattered Hole Finishes:\u003c\/strong\u003e If you observe severe vibration harmonics, chatter marks, or premature insert breakdown during entry, verify the indexable drill body alignment immediately. Operating even 0.03mm off-center relative to the lathe spindle axis generates uneven loads on the outer insert, leading to rapid chipping. Always ensure the insert pocket is completely free of micro-debris and dried grease before seating the insert, torque the central fixing screw to manufacturer specifications, and use high-pressure internal coolant to ensure smooth chip evacuation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":46745384943788,"sku":null,"price":81.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_XPMT040104R-DJ_AH725_indexable_drilling_insert_with_nano-scale_PVD_coating.png?v=1783575803","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-xpmt040104r-dj-ah725-indexable-drilling-inserts","provider":"CNCHome-Beyond","version":"1.0","type":"link"}