{"product_id":"beyond-sp-c25-4d-sd16-sp06-indexable-u-drill-16mm","title":"BEYOND SP C25-4D-SD16-SP06 Indexable U-Drill Body | 16mm 4D CNC Deep Hole Drill","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 50px 25px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; letter-spacing: 1.2px; color: #ffffff;\"\u003e\u003cspan style=\"color: rgb(246, 240, 239);\"\u003eBEYOND SP C25-4D-SD16-SP06\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"font-size: 18px; margin-top: 10px; opacity: 0.9; color: #ffffff;\"\u003e16mm 4D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist\u003c\/p\u003e\n\u003cdiv style=\"display: inline-block; background: rgba(255,255,255,0.2); padding: 10px 20px; margin-top: 20px; font-size: 14px; border-radius: 5px; border: 1px solid #ffffff; color: #ffffff;\"\u003e⚠️ NOTICE: This listing is for the Drill Body ONLY. Carbide inserts (SPMG06) are NOT included.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 35px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 10px;\"\u003eHigh-Rigidity 16mm Deep Hole Boring Solution\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND SP C25-4D-SD16-SP06\u003c\/strong\u003e is a professional-grade \u003cstrong\u003eindexable insert drill\u003c\/strong\u003e engineered for extreme stability in \u003cstrong\u003edeep hole boring\u003c\/strong\u003e. With a \u003cstrong\u003e16mm cutting diameter\u003c\/strong\u003e and a \u003cstrong\u003e4D depth ratio\u003c\/strong\u003e (64mm reach), this tool is the primary choice for \u003cstrong\u003eblind hole machining\u003c\/strong\u003e. Featuring \u003cstrong\u003einternal cooling\u003c\/strong\u003e and a precision-engineered \u003cstrong\u003espiral flute\u003c\/strong\u003e, it ensures rapid chip evacuation and superior surface finish on CNC lathes and machining centers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f8f9fa; padding: 30px; margin: 0 20px; border-radius: 10px; border-left: 6px solid #47479F;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-top: 0;\"\u003eDecoding the Model: SP C25-4D-SD16-SP06\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 20px; text-align: center;\"\u003e\n\u003cdiv style=\"background: white; border: 1px solid #47479F; padding: 15px; width: 135px; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n\u003cstrong style=\"color: #47479f; display: block;\"\u003eSP\u003c\/strong\u003e Square Insert (SPMG)\u003c\/div\u003e\n\u003cdiv style=\"background: white; border: 1px solid #47479F; padding: 15px; width: 135px; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n\u003cstrong style=\"color: #47479f; display: block;\"\u003eC25\u003c\/strong\u003e 25mm Shank Dia.\u003c\/div\u003e\n\u003cdiv style=\"background: white; border: 1px solid #47479F; padding: 15px; width: 135px; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n\u003cstrong style=\"color: #47479f; display: block;\"\u003e4D\u003c\/strong\u003e 4x Diameter Depth\u003c\/div\u003e\n\u003cdiv style=\"background: white; border: 1px solid #47479F; padding: 15px; width: 135px; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n\u003cstrong style=\"color: #47479f; display: block;\"\u003eSD16\u003c\/strong\u003e 16mm Drill Dia.\u003c\/div\u003e\n\u003cdiv style=\"background: white; border: 1px solid #47479F; padding: 15px; width: 135px; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n\u003cstrong style=\"color: #47479f; display: block;\"\u003eSP06\u003c\/strong\u003e Fits SPMG06 Inserts\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 35px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMetric \u0026amp; Imperial Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left; color: #ffffff;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left; color: #ffffff;\"\u003eMetric (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left; color: #ffffff;\"\u003eImperial (Inch)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eDrilling Diameter (SD)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e16.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.629\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eShank Diameter (C)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e25.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.984\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMax Drilling Depth (4D)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e64.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.519\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEquivalent Model\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; text-align: center;\" colspan=\"2\"\u003eSP-C1.0-4D-SD0.629-SP06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 35px; background-color: #fcfcfc;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003ePremium 20CrMnTi Alloy \u0026amp; High-Efficiency Flute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Tool Body Material:\u003c\/strong\u003e This \u003cstrong\u003eindexable drill body\u003c\/strong\u003e is forged from premium \u003cstrong\u003e20CrMnTi alloy steel\u003c\/strong\u003e. The surface is treated with a vacuum-quenched hardening process (HRC 52-55), providing immense wear resistance and preventing tool deflection during \u003cstrong\u003elarge diameter drilling\u003c\/strong\u003e. The shock-resistant core is perfect for handling \u003cstrong\u003einterrupted cuts\u003c\/strong\u003e in heavy-duty machining.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Spiral Flute (U-Groove):\u003c\/strong\u003e The specialized \u003cstrong\u003eU-groove\u003c\/strong\u003e geometry features wide chip pockets designed for high-volume material removal. Combined with \u003cstrong\u003edual internal cooling holes\u003c\/strong\u003e, it allows high-pressure coolant to flush metal chips out of 64mm deep bores instantly, preventing chip packing and protecting the \u003cstrong\u003ecarbide inserts\u003c\/strong\u003e from thermal failure during \u003cstrong\u003eblind hole machining\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 35px; margin: 25px; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #ffffff;\"\u003eRecommended Cutting Parameters (16mm 4D)\u003c\/h3\u003e\n\u003cp style=\"color: #ffffff;\"\u003eSuggested for Carbon Steel (HB \u0026lt; 250). Adjust based on machine rigidity:\u003c\/p\u003e\n\u003cul style=\"list-style-type: square; line-height: 1.8; color: #ffffff;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 100 - 160 m\/min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.05 - 0.11 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation Speed (N):\u003c\/strong\u003e Calculated as $$N = \\frac{Vc \\times 1000}{\\pi \\times 16}$$\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure \u003cstrong\u003einternal cooling\u003c\/strong\u003e (Thru-spindle) is mandatory for 4D depth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin: 40px 0;\"\u003e\n\u003cp\u003eLooking for a compatible side-lock holder for the 25mm shank?\u003c\/p\u003e\n\u003ca style=\"background-color: #47479f; color: #ffffff; padding: 18px 40px; text-decoration: none; border-radius: 50px; font-weight: bold; font-size: 18px; box-shadow: 0 4px 15px rgba(71,71,159,0.3); display: inline-block;\" href=\"https:\/\/cnchome-beyond.com\/search?type=product\u0026amp;options%5Bunavailable_products%5D=last\u0026amp;options%5Bprefix%5D=last\u0026amp;q=spmg\" target=\"_blank\" rel=\"noopener\"\u003eSHOP COMPATIBLE C25 TOOL HOLDERS\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 35px; background-color: #f8f9fa;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eVerified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 15px;\"\u003e\n\u003cdiv style=\"background: white; padding: 15px; border-radius: 8px; border: 1px solid #ddd; font-size: 13px;\"\u003e\n\u003cspan style=\"color: #f39c12;\"\u003e★★★★★\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\"Outstanding 16mm Drill\"\u003c\/strong\u003e\u003cbr\u003e\"Using this on our Haas ST-20 for blind holes. The core rigidity is better than many European brands we've tested.\" \u003cbr\u003e\u003cem\u003e- Robert K. (USA)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: white; padding: 15px; border-radius: 8px; border: 1px solid #ddd; font-size: 13px;\"\u003e\n\u003cspan style=\"color: #f39c12;\"\u003e★★★★★\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\"Fast Chip Evacuation\"\u003c\/strong\u003e\u003cbr\u003e\"No issues at 4D depth. The internal coolant holes are perfectly positioned. Arrived in Poland in 10 days.\" \u003cbr\u003e\u003cem\u003e- Marek W. (Poland)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: white; padding: 15px; border-radius: 8px; border: 1px solid #ddd; font-size: 13px;\"\u003e\n\u003cspan style=\"color: #f39c12;\"\u003e★★★★★\u003c\/span\u003e\u003cbr\u003e\"Solid tool body. Great finish on the blind hole bottom.\"\u003cbr\u003e\u003cem\u003e- Pedro S. (Brazil)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: white; padding: 15px; border-radius: 8px; border: 1px solid #ddd; font-size: 13px;\"\u003e\n\u003cspan style=\"color: #f39c12;\"\u003e★★★★★\u003c\/span\u003e\u003cbr\u003e\"BEYOND tools never disappoint. The SP06 pocket fit is very tight and precise.\"\u003cbr\u003e\u003cem\u003e- Arthur L. (UK)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: white; padding: 15px; border-radius: 8px; border: 1px solid #ddd; font-size: 13px;\"\u003e\n\u003cspan style=\"color: #f39c12;\"\u003e★★★★★\u003c\/span\u003e\u003cbr\u003e\"High durability and consistent performance. Highly recommended.\"\u003cbr\u003e\u003cem\u003e- Y. Watanabe (Japan)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 35px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eSP Series Indexable Drill: Advantages \u0026amp; Considerations\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; gap: 20px; flex-wrap: wrap;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; background: #f1f1ff; padding: 20px; border-radius: 8px; border-top: 4px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003ePros:\u003c\/strong\u003e\n\u003cul style=\"font-size: 14px; padding-left: 20px; margin-top: 10px;\"\u003e\n\u003cli\u003eUses 4-edge \u003cstrong\u003eSPMG square inserts\u003c\/strong\u003e for lower cost-per-edge.\u003c\/li\u003e\n\u003cli\u003eOptimized for \u003cstrong\u003eBlind Hole Machining\u003c\/strong\u003e (Flatter hole bottom).\u003c\/li\u003e\n\u003cli\u003eReinforced tool body core for superior 4D depth rigidity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; background: #fff1f1; padding: 20px; border-radius: 8px; border-top: 4px solid #cc0000;\"\u003e\n\u003cstrong style=\"color: #cc0000;\"\u003eCons:\u003c\/strong\u003e\n\u003cul style=\"font-size: 14px; padding-left: 20px; margin-top: 10px;\"\u003e\n\u003cli\u003eRequires slightly higher machine torque than WC drills.\u003c\/li\u003e\n\u003cli\u003eMandatory high-pressure coolant for effective 64mm deep drilling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 35px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Q\u0026amp;A\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is SP better than WC for blind holes?\u003c\/strong\u003e\u003cbr\u003eA: SP square inserts provide a flatter profile at the bottom of the bore. Additionally, the tool body is thicker and more rigid, which is essential for deep bores.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the inserts?\u003c\/strong\u003e\u003cbr\u003eA: No, this is for the tool body only. It is compatible with \u003cstrong\u003eSPMG060204\u003c\/strong\u003e carbide inserts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the Side-Lock (C25) shank?\u003c\/strong\u003e\u003cbr\u003eA: The 25mm straight shank allows for massive clamping force in side-lock holders, preventing tool rotation under high torque.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 30px; margin: 25px; border-radius: 12px; font-size: 14px;\"\u003e\n\u003ch4 style=\"margin-top: 0; color: #ffffff;\"\u003eMachinist Tip: SP vs. WC U-Drills\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eSP Series (Square):\u003c\/strong\u003e The professional choice for \u003cstrong\u003eBlind Hole (Blind Bores)\u003c\/strong\u003e. Square inserts create a flatter bottom and offer maximum core strength for \u003cstrong\u003e4D deep hole boring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWC Series (Trigon):\u003c\/strong\u003e Primarily used for \u003cstrong\u003eThrough Hole\u003c\/strong\u003e applications. WC inserts offer more cutting edges but the body core is thinner, making it less rigid than SP for extreme depths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 20px; font-size: 12px; color: #999;\"\u003eBrand: BEYOND | Origin: China | 16mm 4D CNC Deep Hole Specialist\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43571225591980,"sku":"SP C25-4D-SD16-SP06","price":38.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_SP_C25-4D-SD16-SP06_16mm_indexable_U-drill_body_with_high-efficiency_spiral_flute_and_internal_coolant_for_4D_deep_hole_CNC_machining..jpg?v=1772861291","url":"https:\/\/cnchome-beyond.com\/products\/beyond-sp-c25-4d-sd16-sp06-indexable-u-drill-16mm","provider":"CNCHome-Beyond","version":"1.0","type":"link"}