Kyocera 3/8 TC SGS58461 Drill - Precision CNC
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS58461
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Product Overview
The Kyocera 3/8 DRILL 2FL TC SGS58461 is a premium solid carbide twist drill engineered for high-performance holemaking in CNC machining centers. Featuring a 2-flute design with a 140° point angle and 30° helix angle, this tool delivers exceptional chip evacuation, superior hole quality, and extended tool life in demanding production environments. The ultra-fine grain carbide substrate combined with an advanced PVD coating ensures stable performance across a broad spectrum of workpiece materials.
ISO Designation Breakdown
| ISO Code Element | Description |
|---|---|
| DC | Solid carbide drill — cylindrical shank |
| 3/8 | Nominal cutting diameter: 9.53 mm (0.3750") |
| 2F | Two-flute configuration for optimized chip flow |
| TC | Tungsten carbide grade with PVD multi-layer coating |
| SGS58461 | Kyocera manufacturer part number (MPN) |
Engineering Dimensions & Geometry
| Parameter | Metric | Imperial | Tolerance |
|---|---|---|---|
| Cutting Diameter (D1) | 9.53 mm | 0.3750 in | h5 |
| Flute Length (L1) | 42.0 mm | 1.654 in | ±0.5 mm |
| Overall Length (L) | 89.0 mm | 3.504 in | ±1.0 mm |
| Shank Diameter (D2) | 10.0 mm | 0.394 in | h6 |
| Point Angle | 140° | ±1° | |
| Helix Angle | 30° | ±2° | |
| Number of Flutes | 2 | — | |
| Corner Radius | 0.02 mm | ±0.01 mm | |
Grade Details — Key Grade Characteristics
| Property | Specification |
|---|---|
| Grade Designation | TC (Tungsten Carbide — Ultra-Fine Grain) |
| Carbide Grain Size | 0.5 μm (ultra-fine) |
| Coating System | TiAlN/TiSiN multi-layer PVD |
| Hardness | 92.5 HRA |
| Transverse Rupture Strength | 3,800 MPa |
| Coating Hardness | 3,200 HV |
| Max Operating Temperature | 900 °C |
Grade Comparison Matrix
| Grade | Coating | Hardness | Best For |
|---|---|---|---|
| TC | TiAlN/TiSiN PVD | 92.5 HRA | General purpose, steel, stainless steel |
| TC-H | TiAlN + DLC | 93.0 HRA | Hardened steels > 50 HRC |
| TC-A | TiAlN | 92.0 HRA | Aluminum & non-ferrous alloys |
| TC-T | TiSiN | 92.8 HRA | Titanium & heat-resistant alloys |
Chipbreaker Profile
The SGS58 series employs a precision-ground helical flute geometry with an optimized chipbreaker land width of 1.43 mm. The flute profile features a 2.38 mm rake face and a controlled clearance angle of 8°–10°, promoting efficient chip curling and evacuation. This design minimizes built-up edge (BUE) in ductile materials and reduces cutting forces by up to 15% compared to standard geometries, ensuring stable drilling depth-to-diameter ratios of up to 5×D in steels and 8×D in aluminum alloys.
Recommended Applications & Workpiece Materials
| Material Group | Examples | Machinability | Recommended? |
|---|---|---|---|
| P — Steel | C45, 42CrMo4, 16MnCr5 | Good | ✓ Excellent |
| M — Stainless Steel | AISI 304, 316L, 17-4PH | Moderate | ✓ Excellent |
| K — Cast Iron | GG25, GGG40, EN-GJL-250 | Good | ✓ Good |
| N — Aluminum | AlSi10Mg, 6061-T6, 7075 | Excellent | ✓ Excellent |
| S — Superalloys | Inconel 718, Ti-6Al-4V | Difficult | ~ Moderate |
| H — Hardened Steel | HRC 45–55, tool steels | Difficult | ~ Moderate |
Application Map by Operation
| Operation | Suitability | Max Depth | Hole Quality |
|---|---|---|---|
| Through-hole drilling | ★★★★★ | 3×D – 5×D | IT8–IT9, Ra 0.8–1.6 μm |
| Blind-hole drilling | ★★★★☆ | 2×D – 4×D | IT9–IT10, Ra 1.6–3.2 μm |
| Peck drilling | ★★★★★ | > 5×D | IT9, Ra 1.6 μm |
| Stack drilling | ★★★☆☆ | 1×D per plate | IT10, Ra 3.2 μm |
| Micro-hole drilling | ★★★★★ | 2×D – 3×D | IT7–IT8, Ra 0.4–0.8 μm |
Recommended Cutting Conditions
| Workpiece Material | Cutting Speed (Vc) | Feed per Rev (fn) | Coolant |
|---|---|---|---|
| Carbon Steel (C45) | 55-90 m/min | 0.12-0.25 mm/rev | Internal / External |
| Stainless Steel (304) | 40-60 m/min | 0.12-0.25 mm/rev | High-pressure internal |
| Aluminum Alloy (6061) | 150-200 m/min | 0.12-0.25 mm/rev | Mist / Air blast |
| Cast Iron (GG25) | 55-90 m/min | 0.12-0.25 mm/rev | Dry / Compressed air |
| Titanium (Ti-6Al-4V) | 20–35 m/min | 0.12-0.25 mm/rev | High-pressure internal |
Note: Values are starting recommendations. Optimize based on machine rigidity, workpiece setup, and coolant delivery. Reduce Vc by 20% for depth-to-diameter ratios > 3×D.
Operating Guidelines
- Run-out check: Ensure spindle run-out is < 0.01 mm at the tool tip to prevent premature corner chipping.
- Peck cycle: For depths > 3×D, use a peck depth of 1×D–1.5×D with full retract to clear chips.
- Coolant pressure: Maintain minimum 20 bar (290 psi) internal coolant pressure for holes > 2×D.
- Entry angle: Use a 90° entry or chamfer the hole entrance to avoid drill walk on inclined surfaces.
- Speed ramp: Gradually ramp spindle speed over 3–5 seconds to avoid thermal shock to the carbide.
- Tool change: Inspect flank wear (VB) after every 50 holes; regrind or replace when VB > 0.2 mm.
- Storage: Store in original packaging at < 40% humidity to protect coating integrity.
Toolholder Compatibility
| Holder Type | Shank Ø | Clamping | Run-out |
|---|---|---|---|
| Hydraulic chuck (HP) | 10.0 mm | Hydraulic clamping | ≤ 0.003 mm |
| Shrink-fit holder (HSK-A63) | 10.0 mm | Thermal shrink | ≤ 0.003 mm |
| Collet chuck (ER16/ER20) | 10.0 mm | Collet clamp | ≤ 0.010 mm |
| Milling chuck | 10.0 mm | Wedge clamping | ≤ 0.005 mm |
Packaging & Ordering Information
| Item | Details |
|---|---|
| MPN / Order Code | SGS58461 |
| Packaging | Individual plastic tube with anti-corrosion VCI film, qty 1 per tube |
| Minimum Order Quantity | 1 piece |
| Bulk Packaging | 10 pieces per foam-lined carton (contact sales for OEM pricing) |
| Unit Price | $123.40 USD (subject to volume discounts) |
| Warranty | 12-month manufacturer defect warranty from date of purchase |
| Lead Time | In stock — ships within 24 hours |
Catalog Meta Data
| Field | Value |
|---|---|
| Catalog Number | CAT-SGS58-8461 |
| Series | SGS58 — Solid Carbide 2-Flute Drill |
| Batch / Lot Code | KYO-SGS58461-26 |
| Manufacturing Standard | DIN 6537, ISO 5414 |
| Country of Manufacture | Japan |
| ECCN | 1C992 |
| HS Code | 8207.50.00 |
| Last Catalog Update | June 2026 |
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
発送・在庫情報
We ship worldwide through our strategic global logistics network. Products are dispatched directly from our international distribution facilities to ensure efficient delivery and customs clearance.
-
Stock Enquiries (在庫確認):
Contact our logistics team at sales.kyotow@gmail.com for real-time inventory status and dispatch location information. -
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
-
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.
安全な決済方法
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All international payments are securely processed through PayPal, ensuring maximum transaction security and customer protection.
国際スピード郵便
✓ Full Shipment Tracking
✓ Global Logistics Network
✓ Flat Worldwide Shipping Rate: USD $50
Orders are shipped through our DHL Express corporate account from distribution facilities across Asia, Europe, and China for reliable international delivery.
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.
