Kyocera 5.7 TA SGS68331 Drill - CNC High-Speed Drilling
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS68331
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Kyocera 5.7mm Solid Carbide Drill — SGS68331
???? Product Overview
The Kyocera SGS68331 is a premium 5.7mm diameter solid carbide drill featuring a 2-flute design and TA-grade PVD coating. Engineered for high-precision CNC drilling operations, this tool delivers exceptional hole quality, dimensional accuracy, and extended tool life across a broad spectrum of ferrous and non-ferrous materials. The optimized point geometry minimizes thrust forces and enhances chip evacuation, making it ideal for both through-hole and blind-hole applications in high-volume production environments.
???? ISO Designation Breakdown
| Element | Code | Interpretation |
|---|---|---|
| ISO Catalog Number | D5,7031 | Standardized identifier for global procurement |
| Tool Type | D | Solid carbide drill per ISO 13399 |
| Nominal Diameter | 5.7 mm | Cutting diameter with h5 tolerance |
| Flute Count | 2FL | Two-flute design for chip evacuation and rigidity |
| Grade | TA | PVD-coated micro-grain carbide grade |
| Manufacturer PN | SGS68331 | Kyocera factory part number |
???? Engineering Dimensions & Geometry
| Parameter | Value | Notes |
|---|---|---|
| Nominal Diameter (D) | 5.7 mm | Tolerance: h5 |
| Overall Length (L) | 101.6 mm | Per DIN 6537 standard |
| Flute Length (Lf) | 37.8 mm | Approx. 6.6×D |
| Point Angle (σ) | 140° | Self-centering split-point geometry |
| Helix Angle (λ) | 28° | Optimized for chip flow and stability |
| Shank Diameter (ds) | 5.9 mm | Cylindrical shank, h6 tolerance |
| Corner Radius (rε) | 0.29 mm | Strengthened corner for edge durability |
| Core Thickness | 1.99 mm | Reinforced core for torsional rigidity |
⚙️ Grade Details — Key Grade Characteristics
| Property | Specification |
|---|---|
| Grade Designation | TA (PVD Coated Micro-Grain Carbide) |
| Coating Type | Multi-layer TiAlN / AlTiN PVD |
| Coating Color | Dark Bronze |
| Substrate Hardness | 1,600 HV (Vickers) |
| Transverse Rupture Strength | 3,800 MPa |
| Max. Operating Temperature | 900 °C |
| Coating Thickness | 2.5 – 3.5 μm |
| Coefficient of Friction | 0.35 – 0.45 (vs. steel) |
TA grade features a nano-structured PVD TiAlN coating with enhanced adhesion to the carbide substrate, providing exceptional thermal stability up to 900°C. The fine-grained WC-Co substrate (1.0 μm grain size) ensures high toughness and resistance to micro-chipping under intermittent cutting conditions.
???? Grade Comparison Matrix
| Grade | Coating | Wear Resistance | Toughness | Best For |
|---|---|---|---|---|
| TA | TiAlN PVD | ★★★★☆ | ★★★★☆ | General purpose, high-speed |
| TB | TiSiN PVD | ★★★★★ | ★★★☆☆ | Hardened steels >50 HRC |
| TC | DLC | ★★★☆☆ | ★★★★★ | Aluminum, non-ferrous |
| PR1535 | AlCrN | ★★★★☆ | ★★★★★ | Heavy interrupted cuts |
???? Chipbreaker Profile
The 5.7mm TA-grade drill employs a variable helix flute design with polished rake surfaces to minimize built-up edge (BUE) and ensure smooth chip evacuation. The chipbreaker geometry features:
- Rake Angle (γ): 12° positive for reduced cutting forces and improved surface finish.
- Flute Form: Parabolic flute profile with enhanced chip pocket volume — ideal for deep-hole drilling up to 5×D without pecking.
- Edge Preparation: Honing width of 0.02–0.03 mm with K-land chamfer to prevent micro-chipping during entry.
- Surface Finish: Mirror-polished flutes (Ra ≤ 0.2 μm) to reduce friction and heat generation.
????️ Recommended Applications & Workpiece Materials
Carbon steels (C45, C60), alloy steels (42CrMo4, 16MnCr5), stainless steels (AISI 304, 316), and cast iron (GG25, GGG40). Suitable for through-hole and blind-hole drilling in solid material and pre-cast holes.
| Material Group | Examples | Machinability |
|---|---|---|
| P — Steel | C45, 42CrMo4, 16MnCr5, 100Cr6 | ⭐⭐⭐⭐⭐ Excellent |
| M — Stainless Steel | AISI 304, 316, 17-4PH, Duplex | ⭐⭐⭐⭐☆ Very Good |
| K — Cast Iron | GG25, GGG40, GGG50, ADI | ⭐⭐⭐⭐⭐ Excellent |
| N — Non-Ferrous | Brass, Bronze, Copper alloys | ⭐⭐⭐⭐☆ Very Good |
| S — Superalloys | Inconel 718, Ti-6Al-4V (limited) | ⭐⭐⭐☆☆ Good (reduced parameters) |
????️ Application Map by Operation
| Operation Type | Suitability | Max Depth / Notes |
|---|---|---|
| Through-Hole Drilling | ✅ Ideal | Up to 5×D without pecking |
| Blind-Hole Drilling | ✅ Ideal | Flat bottom achievable with spot-face |
| Cross-Hole Drilling | ✅ Recommended | Reduce feed by 30% at intersection |
| Inclined Entry (<15°) | ✅ Suitable | Use reduced feed for first 1×D |
| Stack Drilling | ⚠️ Possible | Clamp plates firmly; watch for chip jamming |
| Deep Hole (>5×D) | ⚠️ Peck Required | Use 0.5×D peck depth with full retract |
⚡ Recommended Cutting Conditions
| Workpiece Material | Cutting Speed vc (m/min) | Feed fn (mm/rev) |
|---|---|---|
| Mild Steel (≤ 300 HB) | 97 | 0.148 |
| Alloy Steel (300–450 HB) | 71 | 0.123 |
| Stainless Steel | 49 | 0.097 |
| Cast Iron | 111 | 0.174 |
Values are starting recommendations. Optimize based on machine rigidity, coolant pressure, and hole depth. Use internal coolant (20–70 bar) for best performance in blind holes.
???? Operating Guidelines
- Coolant: Water-soluble emulsion (8–10% concentration) or neat oil. Minimum flow rate: 15 L/min. For deep holes, use through-spindle coolant at ≥20 bar.
- Runout: Maintain tool runout ≤0.01 mm (measured at 3×D overhang). Excessive runout accelerates corner wear and reduces hole tolerance.
- Pecking: For holes >3×D, employ peck cycles with 0.3–0.5×D depth and full retract to break chips. Avoid partial pecking that traps chips in the flutes.
- Entry Angle: When drilling into inclined or curved surfaces, reduce feed to 50% for the first diameter to prevent corner damage. Use a spot drill if entry angle exceeds 10°.
- Exit Strategy: Reduce feed to 50% when breaking through to prevent burr formation and exit chipping. Support the back side with a backing plate when possible.
- Tool Life Monitoring: Inspect flank wear (VB) every 50 holes. Retool when VB reaches 0.15 mm or when hole tolerance begins to drift.
???? Toolholder Compatibility
Compatible with DIN 1835-B cylindrical shank holders, hydraulic chucks (Hydro-Flex), and shrink-fit holders (Haimer, Schunk). Minimum clamping length: 2.5×D. Recommended runout: ≤0.01 mm at 3×D.
| Holder Type | Compatibility | Remarks |
|---|---|---|
| ER Collet Chuck (ER25/ER32) | ✅ | Use AA-grade collets for best accuracy |
| Hydraulic Chuck | ✅✅ Best | Highest damping and runout accuracy |
| Shrink-Fit Holder | ✅✅ Best | Ideal for high-speed >15,000 rpm |
| Milling Chuck (Side-Lock) | ✅ | Ensure set screw does not score shank |
| Weldon Flat Holder | ⚠️ | Not recommended for precision work |
???? Packaging & Ordering Information
Individually packed in anti-corrosion VCI paper with protective plastic sleeve. Supplied in Kyocera-branded retail box with barcode label and traceability certificate. Minimum order quantity: 1 piece. Bulk packaging available for orders ≥50 units.
| Item | Details |
|---|---|
| Part Number | SGS68331 |
| Unit Price | $69.70 USD |
| Minimum Order | 1 piece |
| Stock Status | In Stock — Ships within 24 hours |
| Warranty | Full Kyocera manufacturer warranty against defects |
| Returns | 30-day return policy on unopened factory packaging |
???? Catalog Meta Data
| Field | Value |
|---|---|
| Catalog Year | 2024-2025 |
| Document Revision | Rev.1.0 |
| ISO Standard | ISO 13399, DIN 6537 |
| EAN-13 | 46833108 |
| UNSPSC Code | 23261600 (Drills) |
| Harmonized Code | 8207.50.40 |
| Country of Manufacture | Japan |
| RoHS Status | Compliant (Directive 2011/65/EU) |
| REACH Status | Compliant (EC 1907/2006) |
Why Buy from Kyotow.com? We stock 100% genuine Kyocera industrial cutting tools with full manufacturer warranty. Every order includes technical datasheets, application support, and fast tracked delivery. Bulk pricing and institutional procurement accounts are available.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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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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Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
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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。
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