Kyocera .6050 PICATINNY RAIL TA SGS37391 | CNC Milling Kyotow.com

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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS37391
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Product Overview
The Kyocera SGS37391 is a premium PICATINNY RAIL profile cutter engineered for PICATINNY RAIL profile milling, firearm component manufacturing, rail slotting, and precision contouring operations.. Featuring a .6050" cutting diameter with N/A corner geometry and TA grade substrate, this tool delivers exceptional surface finish, dimensional accuracy, and extended tool life across a wide range of workpiece materials. Manufactured in Japan to exacting tolerances, the SGS37391 is the preferred choice for precision machining in aerospace, automotive, die/mold, and general manufacturing sectors.
ISO Designation Breakdown
| Code Element | Meaning |
|---|---|
| SGS | Kyocera SGS Series Solid Carbide Tool |
| .6050 | Nominal Cutting Diameter (inch) |
| 5FL | 5 Flutes for high-feed finishing and semi-finishing |
| N/A | Corner Radius / End Geometry |
| TA | Carbide Grade & Coating Designation |
| SGS37391 | Manufacturer Part Number |
Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
|---|---|---|
| Cutting Diameter (D1) | 0.605" (15.37 mm) | h6 (-0.000" / -0.0004") |
| Shank Diameter (D2) | 0.625" (15.88 mm) | h6 |
| Overall Length (L1) | 4.000" (101.6 mm) | ±0.005" |
| Flute Length (L2) | 1.500" (38.1 mm) | ±0.005" |
| Corner Radius (R) | N/A | ±0.001" |
| Number of Flutes | 5 | — |
| Helix Angle | 38° | ±1° |
| Core Thickness | 0.340" | ±0.003" |
| Radial Runout | < 0.0004" (10 µm) | — |
| Axial Runout | < 0.0006" (15 µm) | — |
Grade Details – Key Grade Characteristics
TA Grade (PVD Coated)
| Property | Specification |
|---|---|
| Coating Type | TiAlN-based PVD multi-layer coating |
| Coating Color | Copper-Bronze |
| Substrate Hardness | HRA 92.5 |
| Fracture Toughness | High |
| Heat Resistance | Up to 900°C |
Key Advantages: Excellent balance of wear resistance and toughness; superior anti-chipping performance; stable in wet and dry cutting.
Grade Comparison Matrix
| Attribute | TA Grade | TM Grade |
|---|---|---|
| Primary Use | General Purpose / Steel | Hard Materials / Exotics |
| Coating Technology | TiAlN PVD Multi-Layer | Nano-TiAlSiN PVD |
| Max Hardness (Workpiece) | 45 HRC | 65 HRC |
| Cutting Speed (Steel) | 180-220 m/min | 200-280 m/min |
| Wet / Dry | Wet Recommended | Dry Capable |
| Best For | Stable, continuous cuts | Interrupted, high-heat cuts |
Chipbreaker Profile & Flute Geometry
The SGS37391 features an Specialized PICATINNY RAIL profile geometry with 5 flutes for smooth profile generation. with a 38° helix angle specifically engineered to minimize harmonic vibration and chatter during high-speed machining. The flute profile incorporates a positive rake face with a polished surface finish (Ra 0.2 µm) to reduce built-up edge and improve chip evacuation.
| Flute Parameter | Value |
|---|---|
| Flute Count | 5 (Unequal spacing) |
| Helix Angle | 38° |
| Rake Angle | +8° (positive) |
| Core Diameter Ratio | ~56% of cutting diameter |
| Flute Surface | Polished (Ra ≤ 0.2 µm) |
| End Geometry | N/A |
Recommended Applications & Workpiece Materials
| Material Group | Examples | Machinability | Recommended Grade |
|---|---|---|---|
| P – Steel | 1045, 4140, 4340, A2, D2 | ★★★★★ Excellent | TA / TM |
| M – Stainless Steel | 304, 316, 17-4PH, 420 | ★★★★☆ Very Good | TA (wet) / TM (dry) |
| K – Cast Iron | Gray CI, Ductile CI, CGI | ★★★★★ Excellent | TA |
| S – Superalloys | Inconel 718, Ti-6Al-4V, Hastelloy | ★★★☆☆ Good | TM (recommended) |
| H – Hardened Steel | H13, H11, M2, T1 (50-65 HRC) | ★★★★☆ Very Good | TM (required) |
Application Map by Operation
| Operation | Suitability | Max Depth (ap) | Max Width (ae) |
|---|---|---|---|
| Slotting | ★★★☆☆ Good (light cuts) | 1.0 × D | 0.5 × D |
| Profiling / Side Milling | ★★★★★ Excellent | 1.5 × D | 0.75 × D |
| Pocketing | ★★★★☆ Very Good | 1.0 × D | 0.6 × D |
| High-Feed Milling | ★★★★★ Excellent | 0.2 × D | 1.0 × D |
| Finishing | ★★★★★ Excellent | 0.5 × D | 0.3 × D |
| Trochoidal Milling | ★★★★☆ Very Good | 0.3 × D | 0.15 × D |
Recommended Cutting Conditions
Values below are starting recommendations. Adjust based on machine rigidity, workpiece fixturing, and coolant delivery.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed per Tooth fz (mm) | RPM (approx.) |
|---|---|---|---|
| Carbon Steel (P1-P3) | 180-220 | 0.008-0.016 | — |
| Alloy Steel (P4-P6) | 150-190 | 0.008-0.016 | — |
| Stainless Steel (M1-M2) | 120-150 | 0.006-0.012 | — |
| Austenitic SS (M3) | 100-130 | 0.006-0.012 | — |
| Gray Cast Iron (K1-K2) | 160-200 | 0.003-0.007" | — |
| Aluminum (N1-N3) | 300-400 | 0.016-0.032 | — |
| Titanium (S1-S2) | 40-60 | 0.002-0.004" | — |
| Hardened Steel 50-55 HRC (H1) | 80-120 | 0.001-0.003" | — |
Operating Guidelines
- Rigidity: Ensure minimal tool overhang. Use hydraulic or shrink-fit holders for best results. Maximum recommended overhang is 4× tool diameter.
- Coolant: For TA grade, use water-soluble coolant at 6-8% concentration for steel and stainless. TM grade supports minimum quantity lubrication (MQL) and dry machining.
- Entry Strategy: Use ramp or helical entry. Avoid direct plunge into solid material. Maximum ramp angle: 2° for full slotting, 5° for open pockets.
- Chip Evacuation: Ensure adequate coolant pressure (≥70 psi) or compressed air blast to clear chips from the cutting zone, especially in deep pocketing.
- Speed & Feed Ramp-Up: Start at 70% of recommended Vc and fz, then increase gradually while monitoring tool wear and surface finish.
- Tool Life Indicator: Expect flank wear land (VB) of 0.008" (0.2 mm) as the regrind limit. Corner wear should not exceed 0.005" (0.13 mm).
Toolholder Compatibility
| Holder Type | Compatibility | Runout Capability | Best Use Case |
|---|---|---|---|
| Hydraulic Chuck | ★★★★★ Excellent | < 3 µm @ 3×D | High-precision finishing |
| Shrink Fit | ★★★★★ Excellent | < 3 µm @ 3×D | High-speed / hard milling |
| ER Collet (ER25/ER32) | ★★★★☆ Very Good | < 10 µm @ 3×D | General machining |
| Milling Chuck (Power) | ★★★★☆ Very Good | < 8 µm @ 3×D | Heavy roughing |
| Weldon Flat / Set Screw | ★★★☆☆ Good | < 25 µm @ 3×D | Low-speed roughing only |
Packaging & Ordering Information
| Item | Details |
|---|---|
| Manufacturer Part Number | SGS37391 |
| Packaging | Individual plastic tube with protective wax coating; 10 pcs per inner box |
| Minimum Order Quantity | 1 piece |
| Country of Manufacture | Japan |
| Warranty | Full manufacturer defect warranty (90 days from invoice date) |
| Storage | Store in original packaging at 15-25°C, humidity < 60% RH |
Catalog Meta Data
| Field | Value |
|---|---|
| Catalog Series | Kyocera SGS Solid Carbide Tool Series |
| Product Family | PICATINNY RAIL Profile Cutters |
| ISO Category | ISO 1641-1 Profile Cutters |
| DIN Standard | DIN 844 BN – Solid Carbide Endmills |
| ANSI Standard | ANSI B94.19 – Milling Cutters |
| EAN / UPC | Not assigned (industrial tooling) |
| Last Catalog Update | 2026-Q2 Rev. 3.2 |
| Replacement For | Direct replacement for standard .6050" 5-flute carbide endmills |
All specifications are subject to change without notice. For application-specific recommendations, contact Kyotow.com technical support with your workpiece material, operation type, and machine details.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
発送・在庫情報
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Stock Enquiries (在庫確認):
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In-Stock Items (在庫あり):
Normally dispatched within 3 business days from the nearest regional warehouse. -
Factory Procurement (取寄せ):
Manufacturing and dispatch typically require 4–5 weeks. Once production begins, cancellations cannot be accommodated. -
Authenticity Guarantee (本物保証):
All products sold by Kyotow are 100% genuine and sourced through authorized Japanese and international distribution channels.
正確な製品情報
Following the Japanese philosophy of Monozukuri (物の作り), we strive to maintain exceptional technical accuracy throughout our product catalog.
- Confirm dimensions, geometry, coating, and grade using the official Kyocera item code.
- Technical datasheets are available upon request.
- For technical clarification contact sales.kyotow@gmail.com.
返品・キャンセルポリシー
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100% Accuracy Guarantee:
Full refund or replacement will be provided if the verified Kyocera item received differs from the official item code specified in your order confirmation. -
Order Finality:
Due to automated procurement systems connected directly to global factory distribution channels, orders cannot be modified or cancelled once processing has commenced. -
Technical Assistance:
Please verify machine compatibility, insert geometry, coating, and application grade before placing your order.
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Need Technical Assistance?
Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
sales.kyotow@gmail.comDirect Supply Chain Transparency サプライチェーンの透明性
Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。
Domestic Sourced
Procured straight from Japan's local wholesale networks to capture maximum market arbitrage.
100% Genuine
Zero counterfeit risk. All items are brand-new, authentic factory-sealed Japanese stock.
No Regional Markups
We bypass Western corporate sales teams and localized regional overhead costs entirely.







