Kyocera #21 TB430 SGS54704 DRILL 3FL 3XD TB

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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS55032
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Product Overview
The Kyocera #21 TB430 SGS54704 is a premium solid carbide 3-flute 3×D drill engineered for hrsa. Manufactured in Japan to exacting ISO standards, this drill delivers exceptional hole quality, dimensional accuracy, and extended tool life in demanding CNC environments. The optimized point geometry and advanced flute design ensure efficient chip evacuation and reduced cutting forces, making it ideal for high-volume production and precision engineering applications.
ISO Designation Breakdown
| ISO Code | SGS54704 |
| Tool Type | Solid Carbide Drill (3FL) |
| Length Ratio | 3×D |
| Coolant | Through-Tool (TB) |
| Grade | TB430 |
| Standard | ISO 5419 |
Engineering Dimensions & Geometry
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Drill Diameter | D1 | #21 | inch |
| Shank Diameter | D2 | 0.191" | inch |
| Flute Length | L1 | 0.477" | inch |
| Overall Length | L2 | 0.636" | inch |
| Point Length | L3 | 0.716" | inch |
| Point Angle | σ | 130° | degrees |
| Helix Angle | ω | 30° | degrees |
| Number of Flutes | Z | 3 | — |
Grade Details – Key Grade Characteristics
The TB430 grade utilizes a micro-grain carbide substrate with pvd dlc coating, delivering an optimal balance of hardness, toughness, and thermal stability.
| Carbide Substrate | Micro-grain carbide |
| Coating Technology | PVD DLC |
| Hardness | 93.0 HRA |
| Transverse Rupture Strength | 4,000 MPa |
| Coating Color | Black |
Grade Comparison Matrix
| Grade | Hardness | Toughness | Heat Resistance | Best For |
|---|---|---|---|---|
| TB430 | ★★★★★ | ★★★★☆ | ★★★★★ | HRSA |
| PR1725 | ★★★★☆ | ★★★★★ | ★★★★★ | Stainless Steel |
| CA525 | ★★★★☆ | ★★★★★ | ★★★★☆ | Cast Iron |
| KW10 | ★★★★★ | ★★★☆☆ | ★★★★☆ | Aluminum |
Chipbreaker Profile
The proprietary flute geometry on the #21 TB430 SGS54704 is designed to produce short, manageable chips even at high feed rates. The optimized land width and rake angle combination ensures:
- Reduced cutting pressure on the drill point
- Improved chip flow through the 3-flute gullet
- Minimized built-up edge (BUE) on stainless and sticky materials
- Consistent chip formation across the recommended speed/feed window
Recommended Applications & Workpiece Materials
| Material Group | ISO Classification | Machinability | Recommended |
|---|---|---|---|
| Carbon Steel | P.1 – P.3 | Good – Excellent | ✓ Yes |
| Alloy Steel | P.4 – P.6 | Good | ✓ Yes |
| Stainless Steel | M.1 – M.3 | Moderate | ✓ Yes |
| Cast Iron | K.1 – K.3 | Good – Excellent | ✓ Yes |
| Tool Steel | P.6 – H.3 | Moderate – Difficult | △ Caution |
| Aluminum Alloy | N.1 – N.3 | Excellent | ✓ Yes (with coolant) |
| Titanium Alloy | S.1 – S.4 | Difficult | △ Reduced speeds |
Application Map by Operation
| Operation | Suitability | Notes |
|---|---|---|
| Through-Hole Drilling | ★★★★★ | Optimal chip evacuation |
| Blind-Hole Drilling | ★★★★☆ | Peck cycle recommended |
| Stack Drilling | ★★★☆☆ | Use reduced feed |
| Cross-Hole Drilling | ★★★☆☆ | Reduce speed by 20% |
| Inclined Entry | ★★★☆☆ | Spot drill first |
| Enlarging | ★★★★☆ | Up to 1.5×D pre-hole |
Recommended Cutting Conditions
| Material | Vc (m/min) | fn (mm/rev) | Coolant |
|---|---|---|---|
| Carbon Steel | 36 – 72 | 0.083 – 0.155 | Emulsion / MQL |
| Alloy Steel | 26 – 57 | 0.083 – 0.155 | Emulsion (8–10%) |
| Stainless Steel | 16 – 47 | 0.063 – 0.135 | High-pressure coolant |
| Cast Iron | 46 – 87 | 0.103 – 0.175 | Dry / Air blast |
| Aluminum | 76 – 122 | 0.113 – 0.195 | MQL / Air |
Operating Guidelines
- Run-out: Ensure spindle run-out is less than 0.01 mm at the tool tip to prevent uneven wear.
- Coolant Pressure: Maintain minimum 70 bar (1,000 psi) for through-tool coolant to guarantee adequate chip evacuation in 3×D applications. Through-tool internal coolant (TB) for optimal chip evacuation.
- Peck Cycle: For blind holes deeper than 2×D, use a peck depth of 1–1.5×D with full retract to break chips.
- Toolholder: Use hydraulic or shrink-fit holders; collet holders are not recommended for 3×D drills.
- Entry Surface: Chamfer or spot-drill inclined surfaces to prevent drill walk and corner chipping.
- Re-sharpening: Not recommended; these solid carbide drills are designed as disposable tools for maximum consistency.
Toolholder Compatibility
| Holder Type | Compatibility | Recommendation |
|---|---|---|
| Hydraulic Chuck | ✓ Full | Best for 3×D drills – excellent damping |
| Shrink Fit | ✓ Full | Ideal for high-speed applications |
| Milling Chuck | △ Limited | Acceptable for lower speeds only |
| ER Collet | ✗ Not Recommended | Insufficient rigidity for 3×D |
| Weldon Shank | ✓ Full | Secure side-lock for heavy cuts |
Packaging & Ordering Information
| MPN (Manufacturer Part Number) | SGS54704 |
| Packaging Unit | 1 piece per plastic tube |
| Minimum Order Quantity | 1 |
| Warranty | Full manufacturer defect warranty |
| Certification | ISO 9001:2015, ISO 14001 |
| Country of Origin | Japan |
Catalog Meta Data
| Catalog Series | SGS 3-Flute 3×D Solid Carbide Drills |
| Product Family | Solid Carbide Drills – 3 Flute, 3×D |
| Replacement For | Standard twist drills, indexable drills |
| Cross-Reference | Compatible with DIN 6537, ISO 5419 shank standards |
| Last Catalog Update | 2026-Q2 |
| ECCN | 1C992.b |
Disclaimer: Cutting parameters are starting recommendations only. Always verify speeds and feeds based on your specific machine rigidity, workpiece material condition, and coolant setup. Kyocera and Kyotow.com are not liable for tool failure due to improper application or setup.
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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.
- Use the official Kyocera Item Code and Grade specification to verify exact dimensions and compatibility before purchasing.
- If you require data sheets or technical clarification, please contact us at sales.kyotow@gmail.com.
Refund & Cancellation Policy 返品・キャンセルポリシー
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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