Kyocera SGS PR1215 SGS51216 Drill - Die Steel

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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS51216
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Product Overview
The SGS51216 from Kyocera's SGS series is a premium solid carbide drill engineered for die steel. Featuring the PR1215 grade substrate with advanced PVD coating, this drill delivers exceptional wear resistance, superior chip evacuation, and extended tool life in demanding CNC environments. Designed for high-speed machining of alloy tool steel, it ensures repeatable dimensional accuracy and excellent surface finish across high-volume production runs.
ISO Designation Breakdown
| Designator | Value | Meaning |
|---|---|---|
| Series | SGS | Solid Carbide Drill Series |
| Type | 2FL | 2-Flute Design |
| Grade | PR1215 | Advanced PVD-Coated Carbide |
| MPN | SGS51216 | Manufacturer Part Number |
| Application | Die Steel | Primary Machining Application |
Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
|---|---|---|
| Tool Diameter (D1) | 10.5 mm | h5 |
| Overall Length (L1) | 87 mm | ±1.0 mm |
| Flute Length (L2) | 48 mm | ±0.5 mm |
| Point Angle | 142° | ±1° |
| Helix Angle | 30° | ±2° |
| Shank Diameter (D2) | 10.5 mm | h6 |
Grade Details - Key Grade Characteristics
| Property | PR1215 Value | Performance Benefit |
|---|---|---|
| Hardness | 92.5 HRA | Superior wear resistance in continuous cutting |
| TRS | 3700 MPa | High fracture toughness for interrupted cuts |
| Coating | TiAlN-PVD Multi-Layer | Excellent heat and oxidation resistance |
| Coating Thickness | 2.7 μm | Optimal balance of adhesion and lubricity |
| Grain Size | 0.5 μm Ultra-Fine | Enhanced edge sharpness and finish quality |
Grade Comparison Matrix
| Grade | Wear Resistance | Toughness | Best For |
|---|---|---|---|
| PR1215 | ★★★★★ | ★★★★☆ | Die Steel |
| PR1725 | ★★★★☆ | ★★★★★ | Interrupted Cuts, Roughing |
| CA6535 | ★★★★★ | ★★★☆☆ | High-Speed Finishing, Hardened Steel |
| CA515 | ★★★☆☆ | ★★★★☆ | General Purpose, Mild Steel |
Chipbreaker Profile
The SGS51216 utilizes an optimized flute geometry with a wide chipbreaker profile designed specifically for alloy tool steel machining. The open flute configuration ensures efficient chip curling and evacuation, preventing chip packing and reducing cutting temperatures by up to 15% compared to conventional geometries.
| Chipbreaker Feature | Specification |
|---|---|
| Flute Type | Parabolic |
| Chipbreaker Width | 0.8 mm |
| Rake Angle | 7° |
| Margin Width | 0.19 mm |
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Machinability | Recommended? |
|---|---|---|---|
| Carbon Steel | P.1 / P.2 | Good | ✓ Yes |
| Alloy Steel | P.3 / P.4 | Good | ✓ Yes |
| Stainless Steel | M.1 / M.2 | Moderate | ✓ Yes |
| Cast Iron | K.1 / K.2 | Good | ✓ Yes |
| Hardened Steel (>45 HRC) | H.1 | Difficult | △ Caution |
| Titanium Alloy | S.1 / S.2 | Difficult | △ Caution |
Application Map by Operation
| Operation | Suitability | Recommended Speed | Feed |
|---|---|---|---|
| Through-Hole Drilling | ★★★★★ Excellent | 80 m/min | 0.14 mm/rev |
| Blind-Hole Drilling | ★★★★☆ Good | 70 m/min | 0.12 mm/rev |
| Peck Drilling | ★★★★☆ Good | 60 m/min | 0.16 mm/rev |
| Counterboring | ★★★☆☆ Moderate | 50 m/min | 0.07 mm/rev |
Recommended Cutting Conditions
| Material | Cutting Speed (Vc) | Feed (fn) | Depth (ap) |
|---|---|---|---|
| Mild Steel (<30 HRC) | 120 m/min | 0.16 mm/rev | 1.0–2.0×D |
| Alloy Steel (30–45 HRC) | 100 m/min | 0.13 mm/rev | 1.0–1.5×D |
| Stainless Steel | 80 m/min | 0.11 mm/rev | 0.8–1.2×D |
| Cast Iron | 110 m/min | 0.19 mm/rev | 1.0–2.5×D |
Operating Guidelines
- Always use high-pressure coolant (9–13 bar) directed at the tool tip for optimal chip evacuation and heat dissipation.
- Maintain rigid workpiece clamping and minimal tool overhang to prevent vibration and ensure hole straightness.
- For peck drilling cycles, retract to clear chips every 1.0×D in depths beyond 3×D.
- Verify spindle runout is less than 0.01 mm to maximize tool life and hole quality.
- Use synthetic coolant for best results with alloy tool steel.
- Replace the drill when flank wear exceeds 0.15 mm or when burr formation becomes excessive.
Toolholder Compatibility
| Holder Type | Compatibility | Notes |
|---|---|---|
| Hydraulic Chuck | ✓ Excellent | Best for high-precision applications |
| ER Collet Chuck | ✓ Good | Use ER16/ER20 for 10.5 mm shank |
| Shrink Fit Holder | ✓ Excellent | Maximum rigidity and torque transmission |
| Weldon Flat Holder | ✓ Good | Ensure flat engages fully for anti-rotation |
Packaging & Ordering Information
| Item | Details |
|---|---|
| MPN | SGS51216 |
| Packaging | Individual plastic tube with foam insert, labeled with barcode and grade |
| Quantity per Pack | 1 piece |
| Minimum Order | 1 piece |
| Warranty | Full manufacturer warranty against defects in material and workmanship |
| Certification | ISO 9001:2015, ISO 14001:2015 |
Catalog Meta Data
| Attribute | Value |
|---|---|
| Catalog Series | Kyocera SGS Solid Carbide Drills |
| Product Line | 2-Flute General Purpose Drills |
| Grade Family | PR1215 |
| Tool Category | Solid Carbide Drill |
| Industry Sectors | Automotive, Aerospace, General Engineering, Mold & Die |
| Last Catalog Update | 2026-06 |
Why Buy from Kyotow.com? We supply 100% genuine OEM Kyocera cutting tools with full manufacturer warranty, expert CNC tooling application support, and fast worldwide tracked delivery. Bulk and institutional orders are welcome.
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To guarantee absolute accuracy for your machining requirements, please cross-reference the exact Kyocera Item Code, Item Name, and Material Grade.
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We offer a full refund or replacement if the verified Kyocera part number of the item received differs from the official item code specified in your order confirmation.
Due to automated procurement systems linking directly to factory distribution channels across our global facilities, orders cannot be canceled or modified once processing begins. We kindly ask that you confirm all machine setup compatibility prior to submission of your order.
If you have any doubts regarding tool geometries, coatings, or application grades, please consult our support team at sales.kyotow@gmail.com before finalizing your procurement.
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