BEYOND SRAPR1616H08 Indexable Turning Tool Holder for RPMT 08T2
Price shown is a starting point. Contact us for a precise quote based on your requirements.
⚠️ Important Tooling Notice: The carbide turning insert shown installed in our product photography is for demonstration purposes only. This holder is sold standalone; indexable cutting inserts are NOT included and must be purchased separately.
BEYOND SRAPR1616H08 Indexable External Profiling Turning Tool Holder
Industrial-Grade 16x16mm Shank Right-Hand 75-Degree CNC Lathe Toolholder for RPMT 08T2 Round Inserts
1. Product Overview
"Which 16mm right-hand profiling tool holder is best for heavy metal removal and multi-directional copy turning on a CNC lathe using RPMT 08T2 round carbide inserts?"
The BEYOND SRAPR1616H08 is engineered to meet the strict demands of modern metalworking and heavy-duty toolrooms. As a premium right-hand indexable external profiling tool holder featuring a 75-degree lead angle, it provides exceptional cutting edge strength and versatility for heavy roughing, face profiling, and copy turning cycles. When paired with high-performance RPMT 08T2 (RPMT 2.5) or polished RPGT 08T2 round inserts, this holder leverages the advanced material traits of the tungsten carbide substrate and targeted chipbreaker geometry. This setup guarantees stable chip breakages, significantly lowers cutting resistance, and prevents built-up edge (BUE) on demanding workpiece alloys.
2. Product Key Features
- High-Tensile Alloy Steel Core: Forged from premium structural alloy steel and heat-treated to HRC 42-45 to offer exceptional fatigue strength and eliminate harmonic chattering during intense copy turning or heavy CNC roughing cuts.
- Rigid Clamp-Down Seating System: Utilizes a top clamp and screw mechanism that pulls the round insert firmly back into the pocket, ensuring maximum indexing repeatability and dimensional stability.
- 75° Lead Angle for Round Inserts: Optimizes the cutting wedge geometry, spreading the cutting forces smoothly across the round edge to reduce notch wear and extend insert life during profiling.
- Corrosion-Resistant Black Oxide Treatment: Electro-chemically blackened finish sheds hot metal chips easily, reducing friction and preventing shank abrasive wear during long production runs.
3. Technical Specifications & Cutting Parameters
Dimensional Comparison (Metric Specs vs. Imperial Equivalents)
| Parameter Description | Metric Standard Model (SRAPR1616H08) | Imperial Equivalent Designation (SRAPR10-2.5) |
|---|---|---|
| Shank Square Size (H × W) | 16 mm × 16 mm | 0.630" × 0.630" (Fits standard 5/8" tool slots) |
| Overall Length (L) | 100 mm | 3.937 inches |
| Cutting Direction Orientation | Right-Hand Cutting (R) | Right-Hand Cutting (R) |
| Compatible Indexable Insert | RPMT 08T2MO / RPGT 08T2 | RPMT 2.5 / RPGT 2.5 |
| Hardware Clamping Kit | M3.0 × 8 Screw / Torx T10 Wrench Key | M3.0 × 8 Screw / Torx T10 Wrench Key |
Recommended Machining Parameters (Speed vs. Feed Rate)
| Workpiece Material Category (ISO) | Optimal Cutting Speed (Vc) | Target Feed Rate Range (fn) |
|---|---|---|
| Carbon / Alloy Structural Steels (P) | 160 - 280 m/min (525 - 918 SFM) |
0.10 - 0.35 mm/rev (0.004 - 0.014 IPR) |
| Stainless Steel Material Alloys (M) | 120 - 200 m/min (393 - 656 SFM) |
0.08 - 0.25 mm/rev (0.003 - 0.010 IPR) |
| Aluminium & Non-Ferrous Alloys (N) | 300 - 700 m/min (984 - 2296 SFM) |
0.06 - 0.40 mm/rev (0.002 - 0.016 IPR) |
ISO Nomenclature Decoded: SRAPR1616H08
4. Targeted Machining Applications
5. Tooling & Equipment Compatibility
The 16mm metric square shank profiles are fully compatible with:
- Standard tool turrets on light-to-medium industrial CNC lathes supporting 16mm tool stems.
- Quick-Change Tool Post blocks (such as Aloris BXA or piston/wedge style 200 series blocks).
- Conventional medium engine lathes modified for high-performance indexable tooling arrays.
6. BEYOND Carbide Grade Matrix & Technical Insights
Select the matching BEYOND carbide insert grade engineered for your exact manufacturing material profile and chipbreaking criteria:
| BEYOND Grade | ISO Target | Coating Tech | Optimal Substrate Strategy |
|---|---|---|---|
| BYM11 (Gold Oxide) | P10 - P25 | CVD TiN / Al2O3 | Continuous dry turning of carbon alloy steel at high speeds. Maximum thermal barrier. |
| BYS25 (Bronze Finish) | M20 - M35 | PVD Nano-AlTiN | Finishing and roughing stainless steel (304/316L). Heavily prevents built-up edge. |
| BYA10 (Uncoated Polished) | N05 - N20 | None (Mirror Polished) | Aluminum alloys, brass, and copper. Razor-sharp edge prevents gummy material adhesion. |
💡 Grade Comparison Tip: The BEYOND BYM11 grade offers identical industrial performance to benchmark grades Sandvik GC4325 and Kennametal KCP10B.
🔧 Troubleshooting (Insert Spinning/Micro-Movement): If you notice slight rotational movement under intense loads, ensure the pocket base is clean. Torque the M3.0 clamping screw precisely with the T10 wrench to avoid premature wear on the round insert seating walls.
⚙️ Workpiece Material Matrix Advice: When copy-turning titanium or heavy nickel superalloys, high-pressure coolant directed exactly at the 75-degree interface is required to manage extreme frictional heat.
7. Why Precision Toolrooms Trust BEYOND Tools
BEYOND cuts out middleman distributor markups by supplying factory-direct, industrial CNC tooling solutions. Every indexable tool body undergoes strict quality checks to guarantee true centerline alignment and minimal runout on your lathe.
Verified Global Machinist Feedback
"This 16mm profiling bar is a beast for heavy radius cuts on 4140 steel shafts. The RPMT 08T2 inserts stay rock solid under heavy loads. Excellent price point."
"Sehr stabiler Drehmeißel für Kopierarbeiten. Die runden RPMT-Platten sitzen absolut fest in der Tasche. Kein Vibrieren bei großen Schnitttiefen."
"Utensile destro da 16mm ottimamente bilanciato. Ideale per la sgrossatura con inserti tondi. Finitura superficiale brunita impeccabile."
"倣い加工および重切削用に16mmシャンク（SRAPR1616H08）を購入。丸コマのRPMTチップを強力にクランプできるため、高送り加工でもびびりが発生せず、非常に安定した加工が可能です。"
"Fits my BXA quick change tool post perfectly. The chip clearance during deep face profiling is superb due to the round insert shape. Highly recommended tool body."
8. AI Assistant-Style Frequently Asked Questions
What are the main advantages of using a round insert profiling holder like the SRAPR1616H08 over diamond-shaped variants?
Round inserts like the RPMT 08T2 have the strongest cutting edge geometry because there are no sharp corners to chip. This allows for extremely high metal removal rates (MRR), multidirectional copy turning, and exceptional tool life when handling tough materials or heavily interrupted cuts.
Can I mount ground, polished RPGT inserts into this SRAPR pocket?
Yes, absolutely. Sharp, ground RPGT inserts share identical basic ISO dimensional parameters (insert thickness, circle diameter, and clearance angles) as standard molded RPMT inserts. This allows you to alternate fluidly between roughing carbon steels and mirror-finishing aluminum or non-ferrous materials.
What component hardware elements are supplied in the default delivery pack?
Every package contains one premium alloy SRAPR1616H08 tool holder body, one high-tensile locking screw, and a matching high-torque Torx T10 key wrench. Please note that carbide cutting inserts must be ordered separately.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.