HRC55 2-Flute Solid Carbide Twist Drill for Steel Machining
Calidad constante
Consistent geometry across repeat orders.
Pedidos flexibles
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Herramientas estándar y personalizadas
Standard sizes and custom configurations.
HRC55 Carbide Twist Drill Overview
This HRC55 2-flute solid carbide twist drill is designed for stable and accurate CNC hole machining in carbon steel, alloy steel and selected pre-hardened steel. Its precision-ground point supports positioning stability, while the spiral flute geometry assists chip evacuation during continuous drilling. Fine-grain solid carbide provides rigidity and repeatable cutting performance. Standard diameters from 1.0 to 20.0 mm are available in 0.1 mm increments, with larger and non-standard sizes, lengths, point angles, coatings and coolant configurations available for review.
Key Configuration
Precision-Ground Drill Point
Accurate point geometry supports positioning stability and helps control hole deviation.
Coated or Uncoated
Surface configuration can be selected according to steel grade, hardness and cutting conditions.
Same-Diameter Shank
The standard series uses a cylindrical same-diameter shank configuration where D equals d.
Key Product Advantages
Workpiece Material Compatibility
| Material de la pieza | Dureza | Vc (m/min) | Feed Guidance | Refrigerante |
|---|---|---|---|---|
| Acero al carbono | Below HRC30 | 70-110 | Adjust by diameter and hole depth | External coolant |
| Acero aleado | HRC30-45 | 50-85 | Reduce feed as hardness and depth increase | Stable external coolant |
| Pre-Hardened / Mold Steel | HRC45-55 | 30-55 | Use a rigid setup and conservative feed | Consistent coolant supply |
Applications & Target Scope
- Carbon steel and alloy steel components
- Pre-hardened and mold steel within the confirmed hardness range
- Blind-hole and through-hole drilling
- Precision CNC production drilling
- Mechanical and mold component machining
Product & Cutting-Edge Details
Tool Nomenclature & Dimensions
D is cutting diameter, L1 is flute length, d is shank diameter, L2 is shank length and L is overall length. The standard series uses a same-diameter shank, so D equals d.
Technical Configuration
Standard technical parameters for this steel-machining drill series.
| Artículo | Especificación |
|---|---|
| Cutting Edge Material | Carburo sólido |
| Drill Type | Solid Carbide Twist Drill |
| Flautas | 2 Flutes |
| Workpiece Hardness | Hasta HRC55 |
| Surface Option | Coated / Uncoated |
| Point Angle | 130° / 135° / 140° |
| Shank Configuration | Same-Diameter Shank (D = d) |
| Diámetro | 1.0-22.0 mm |
| Standard Stock Range | 1.0-20.0 mm in 0.1 mm increments |
| Application Materials | Carbon Steel, Alloy Steel, Pre-Hardened Steel |
Standard Size Matrix
Complete standard and on-request dimensional references. Coated and uncoated availability is retained from the original product data.
| Diameter Range D (mm) | Flute Length L1 | Shank Diameter d | Shank Length L2 | Overall Length L |
|---|---|---|---|---|
| 1.0-1.1 | 15 | Same as D | 25 | 40 |
| 1.2-1.3 | 18 | Same as D | 22 | 40 |
| 1.4-3.1 | 20 | Same as D | 20 | 40 |
| 3.2-4.1 | 23 | Same as D | 20 | 45 |
| 4.2-5.1 | 25 | Same as D | 22 | 50 |
| 5.2-5.6 | 25 | Same as D | 25 | 50 |
| 5.7-8.6 | 30 | Same as D | 30 | 60 |
| 8.7-9.6 | 33 | Same as D | 35 | 65 |
| 9.7-12.1 | 35 | Same as D | 35 | 70 |
| 12.2-12.9 | 38 | Same as D | 37 | 75 |
| 13.0-22.0 | 60 | Same as D | 40 | 100 |
| D (mm) | L1 (mm) | d (mm) | L2 (mm) | L (mm) | Coated | Uncoated |
|---|---|---|---|---|---|---|
| 1.0 | 15 | 1.0 | 25 | 40 | In Stock | In Stock |
| 1.1 | 15 | 1.1 | 25 | 40 | In Stock | In Stock |
| 1.2 | 18 | 1.2 | 22 | 40 | In Stock | In Stock |
| 1.3 | 18 | 1.3 | 22 | 40 | In Stock | In Stock |
| 1.4 | 20 | 1.4 | 20 | 40 | In Stock | In Stock |
| 1.5 | 20 | 1.5 | 20 | 40 | In Stock | In Stock |
| 1.6 | 20 | 1.6 | 20 | 40 | In Stock | In Stock |
| 1.7 | 20 | 1.7 | 20 | 40 | In Stock | In Stock |
| 1.8 | 20 | 1.8 | 20 | 40 | In Stock | In Stock |
| 1.9 | 20 | 1.9 | 20 | 40 | In Stock | In Stock |
| 2.0 | 20 | 2.0 | 20 | 40 | In Stock | In Stock |
| 2.1 | 20 | 2.1 | 20 | 40 | In Stock | In Stock |
| 2.2 | 20 | 2.2 | 20 | 40 | In Stock | In Stock |
| 2.3 | 20 | 2.3 | 20 | 40 | In Stock | In Stock |
| 2.4 | 20 | 2.4 | 20 | 40 | In Stock | In Stock |
| 2.5 | 20 | 2.5 | 20 | 40 | In Stock | In Stock |
| 2.6 | 20 | 2.6 | 20 | 40 | In Stock | In Stock |
| 2.7 | 20 | 2.7 | 20 | 40 | In Stock | In Stock |
| 2.8 | 20 | 2.8 | 20 | 40 | In Stock | In Stock |
| 2.9 | 20 | 2.9 | 20 | 40 | In Stock | In Stock |
| 3.0 | 20 | 3.0 | 20 | 40 | In Stock | In Stock |
| 3.1 | 20 | 3.1 | 20 | 40 | In Stock | In Stock |
| 3.2 | 23 | 3.2 | 20 | 45 | In Stock | In Stock |
| 3.3 | 23 | 3.3 | 20 | 45 | In Stock | In Stock |
| 3.4 | 23 | 3.4 | 20 | 45 | In Stock | In Stock |
| 3.5 | 23 | 3.5 | 20 | 45 | In Stock | In Stock |
| 3.6 | 23 | 3.6 | 20 | 45 | In Stock | In Stock |
| 3.7 | 23 | 3.7 | 20 | 45 | In Stock | In Stock |
| 3.8 | 23 | 3.8 | 20 | 45 | In Stock | In Stock |
| 3.9 | 23 | 3.9 | 20 | 45 | In Stock | In Stock |
| 4.0 | 23 | 4.0 | 20 | 45 | In Stock | In Stock |
| 4.1 | 23 | 4.1 | 20 | 45 | In Stock | In Stock |
| 4.2 | 25 | 4.2 | 22 | 50 | In Stock | In Stock |
| 4.3 | 25 | 4.3 | 22 | 50 | In Stock | In Stock |
| 4.4 | 25 | 4.4 | 22 | 50 | In Stock | In Stock |
| D (mm) | L1 (mm) | d (mm) | L2 (mm) | L (mm) | Coated | Uncoated |
|---|---|---|---|---|---|---|
| 4.5 | 25 | 4.5 | 22 | 50 | In Stock | In Stock |
| 4.6 | 25 | 4.6 | 22 | 50 | In Stock | In Stock |
| 4.7 | 25 | 4.7 | 22 | 50 | In Stock | In Stock |
| 4.8 | 25 | 4.8 | 22 | 50 | In Stock | In Stock |
| 4.9 | 25 | 4.9 | 22 | 50 | In Stock | In Stock |
| 5.0 | 25 | 5.0 | 22 | 50 | In Stock | In Stock |
| 5.1 | 25 | 5.1 | 22 | 50 | In Stock | In Stock |
| 5.2 | 25 | 5.2 | 25 | 50 | In Stock | In Stock |
| 5.3 | 25 | 5.3 | 25 | 50 | In Stock | In Stock |
| 5.4 | 25 | 5.4 | 25 | 50 | In Stock | In Stock |
| 5.5 | 25 | 5.5 | 25 | 50 | In Stock | In Stock |
| 5.6 | 25 | 5.6 | 25 | 50 | In Stock | In Stock |
| 5.7 | 30 | 5.7 | 30 | 60 | In Stock | In Stock |
| 5.8 | 30 | 5.8 | 30 | 60 | In Stock | In Stock |
| 5.9 | 30 | 5.9 | 30 | 60 | In Stock | In Stock |
| 6.0 | 30 | 6.0 | 30 | 60 | In Stock | In Stock |
| 6.1 | 30 | 6.1 | 30 | 60 | In Stock | In Stock |
| 6.2 | 30 | 6.2 | 30 | 60 | In Stock | In Stock |
| 6.3 | 30 | 6.3 | 30 | 60 | In Stock | In Stock |
| 6.4 | 30 | 6.4 | 30 | 60 | In Stock | In Stock |
| 6.5 | 30 | 6.5 | 30 | 60 | In Stock | In Stock |
| 6.6 | 30 | 6.6 | 30 | 60 | In Stock | In Stock |
| 6.7 | 30 | 6.7 | 30 | 60 | In Stock | In Stock |
| 6.8 | 30 | 6.8 | 30 | 60 | In Stock | In Stock |
| 6.9 | 30 | 6.9 | 30 | 60 | In Stock | In Stock |
| 7.0 | 30 | 7.0 | 30 | 60 | In Stock | In Stock |
| 7.1 | 30 | 7.1 | 30 | 60 | In Stock | In Stock |
| 7.2 | 30 | 7.2 | 30 | 60 | In Stock | In Stock |
| 7.3 | 30 | 7.3 | 30 | 60 | In Stock | In Stock |
| 7.4 | 30 | 7.4 | 30 | 60 | In Stock | In Stock |
| 7.5 | 30 | 7.5 | 30 | 60 | In Stock | In Stock |
| 7.6 | 30 | 7.6 | 30 | 60 | In Stock | In Stock |
| 7.7 | 30 | 7.7 | 30 | 60 | In Stock | In Stock |
| 7.8 | 30 | 7.8 | 30 | 60 | In Stock | In Stock |
| 7.9 | 30 | 7.9 | 30 | 60 | In Stock | In Stock |
| D (mm) | L1 (mm) | d (mm) | L2 (mm) | L (mm) | Coated | Uncoated |
|---|---|---|---|---|---|---|
| 8.0 | 30 | 8.0 | 30 | 60 | In Stock | In Stock |
| 8.1 | 30 | 8.1 | 30 | 60 | In Stock | In Stock |
| 8.2 | 30 | 8.2 | 30 | 60 | In Stock | In Stock |
| 8.3 | 30 | 8.3 | 30 | 60 | In Stock | In Stock |
| 8.4 | 30 | 8.4 | 30 | 60 | In Stock | In Stock |
| 8.5 | 30 | 8.5 | 30 | 60 | In Stock | In Stock |
| 8.6 | 30 | 8.6 | 30 | 60 | In Stock | In Stock |
| 8.7 | 33 | 8.7 | 35 | 65 | In Stock | In Stock |
| 8.8 | 33 | 8.8 | 35 | 65 | In Stock | In Stock |
| 8.9 | 33 | 8.9 | 35 | 65 | In Stock | In Stock |
| 9.0 | 33 | 9.0 | 35 | 65 | In Stock | In Stock |
| 9.1 | 33 | 9.1 | 35 | 65 | In Stock | In Stock |
| 9.2 | 33 | 9.2 | 35 | 65 | In Stock | In Stock |
| 9.3 | 33 | 9.3 | 35 | 65 | In Stock | In Stock |
| 9.4 | 33 | 9.4 | 35 | 65 | In Stock | In Stock |
| 9.5 | 33 | 9.5 | 35 | 65 | In Stock | In Stock |
| 9.6 | 33 | 9.6 | 35 | 65 | In Stock | In Stock |
| 9.7 | 35 | 9.7 | 35 | 70 | In Stock | In Stock |
| 9.8 | 35 | 9.8 | 35 | 70 | In Stock | In Stock |
| 9.9 | 35 | 9.9 | 35 | 70 | In Stock | In Stock |
| 10.0 | 35 | 10.0 | 35 | 70 | In Stock | In Stock |
| 10.1 | 35 | 10.1 | 35 | 70 | In Stock | In Stock |
| 10.2 | 35 | 10.2 | 35 | 70 | In Stock | In Stock |
| 10.3 | 35 | 10.3 | 35 | 70 | In Stock | In Stock |
| 10.4 | 35 | 10.4 | 35 | 70 | In Stock | In Stock |
| 10.5 | 35 | 10.5 | 35 | 70 | In Stock | In Stock |
| 10.6 | 35 | 10.6 | 35 | 70 | In Stock | In Stock |
| 10.7 | 35 | 10.7 | 35 | 70 | In Stock | In Stock |
| 10.8 | 35 | 10.8 | 35 | 70 | In Stock | In Stock |
| 10.9 | 35 | 10.9 | 35 | 70 | In Stock | In Stock |
| 11.0 | 35 | 11.0 | 35 | 70 | In Stock | In Stock |
| 11.1 | 35 | 11.1 | 35 | 70 | In Stock | In Stock |
| 11.2 | 35 | 11.2 | 35 | 70 | In Stock | In Stock |
| 11.3 | 35 | 11.3 | 35 | 70 | In Stock | In Stock |
| 11.4 | 35 | 11.4 | 35 | 70 | In Stock | In Stock |
| D (mm) | L1 (mm) | d (mm) | L2 (mm) | L (mm) | Coated | Uncoated |
|---|---|---|---|---|---|---|
| 11.5 | 35 | 11.5 | 35 | 70 | In Stock | In Stock |
| 11.6 | 35 | 11.6 | 35 | 70 | In Stock | In Stock |
| 11.7 | 35 | 11.7 | 35 | 70 | In Stock | In Stock |
| 11.8 | 35 | 11.8 | 35 | 70 | In Stock | In Stock |
| 11.9 | 35 | 11.9 | 35 | 70 | In Stock | In Stock |
| 12.0 | 35 | 12.0 | 35 | 70 | In Stock | In Stock |
| 12.1 | 35 | 12.1 | 35 | 70 | In Stock | In Stock |
| 12.2 | 38 | 12.2 | 37 | 75 | In Stock | In Stock |
| 12.3 | 38 | 12.3 | 37 | 75 | In Stock | In Stock |
| 12.4 | 38 | 12.4 | 37 | 75 | In Stock | In Stock |
| 12.5 | 38 | 12.5 | 37 | 75 | In Stock | In Stock |
| 12.6 | 38 | 12.6 | 37 | 75 | In Stock | In Stock |
| 12.7 | 38 | 12.7 | 37 | 75 | In Stock | In Stock |
| 12.8 | 38 | 12.8 | 37 | 75 | In Stock | In Stock |
| 12.9 | 38 | 12.9 | 37 | 75 | In Stock | In Stock |
| 13.0 | 60 | 13.0 | 40 | 100 | In Stock | In Stock |
| 13.1 | 60 | 13.1 | 40 | 100 | In Stock | In Stock |
| 13.2 | 60 | 13.2 | 40 | 100 | In Stock | In Stock |
| 13.3 | 60 | 13.3 | 40 | 100 | In Stock | In Stock |
| 13.4 | 60 | 13.4 | 40 | 100 | In Stock | In Stock |
| 13.5 | 60 | 13.5 | 40 | 100 | In Stock | In Stock |
| 13.6 | 60 | 13.6 | 40 | 100 | In Stock | In Stock |
| 13.7 | 60 | 13.7 | 40 | 100 | In Stock | In Stock |
| 13.8 | 60 | 13.8 | 40 | 100 | In Stock | In Stock |
| 13.9 | 60 | 13.9 | 40 | 100 | In Stock | In Stock |
| 14.0 | 60 | 14.0 | 40 | 100 | In Stock | In Stock |
| 14.1 | 60 | 14.1 | 40 | 100 | In Stock | In Stock |
| 14.2 | 60 | 14.2 | 40 | 100 | In Stock | In Stock |
| 14.3 | 60 | 14.3 | 40 | 100 | In Stock | In Stock |
| 14.4 | 60 | 14.4 | 40 | 100 | In Stock | In Stock |
| D (mm) | L1 (mm) | d (mm) | L2 (mm) | L (mm) | Coated | Uncoated |
|---|---|---|---|---|---|---|
| 14.5 | 60 | 14.5 | 40 | 100 | In Stock | In Stock |
| 14.6 | 60 | 14.6 | 40 | 100 | In Stock | In Stock |
| 14.7 | 60 | 14.7 | 40 | 100 | In Stock | In Stock |
| 14.8 | 60 | 14.8 | 40 | 100 | In Stock | In Stock |
| 14.9 | 60 | 14.9 | 40 | 100 | In Stock | In Stock |
| 15.0 | 60 | 15.0 | 40 | 100 | In Stock | In Stock |
| 15.1 | 60 | 15.1 | 40 | 100 | In Stock | In Stock |
| 15.2 | 60 | 15.2 | 40 | 100 | In Stock | In Stock |
| 15.3 | 60 | 15.3 | 40 | 100 | In Stock | In Stock |
| 15.4 | 60 | 15.4 | 40 | 100 | In Stock | In Stock |
| 15.5 | 60 | 15.5 | 40 | 100 | In Stock | In Stock |
| 15.6 | 60 | 15.6 | 40 | 100 | In Stock | In Stock |
| 15.7 | 60 | 15.7 | 40 | 100 | In Stock | In Stock |
| 15.8 | 60 | 15.8 | 40 | 100 | In Stock | In Stock |
| 15.9 | 60 | 15.9 | 40 | 100 | In Stock | In Stock |
| 16.0 | 60 | 16.0 | 40 | 100 | In Stock | In Stock |
| 16.1 | 60 | 16.1 | 40 | 100 | In Stock | In Stock |
| 16.2 | 60 | 16.2 | 40 | 100 | In Stock | In Stock |
| 16.3 | 60 | 16.3 | 40 | 100 | In Stock | In Stock |
| 16.4 | 60 | 16.4 | 40 | 100 | In Stock | In Stock |
| 16.5 | 60 | 16.5 | 40 | 100 | In Stock | In Stock |
| 16.6 | 60 | 16.6 | 40 | 100 | In Stock | In Stock |
| 16.7 | 60 | 16.7 | 40 | 100 | In Stock | In Stock |
| 16.8 | 60 | 16.8 | 40 | 100 | In Stock | In Stock |
| 16.9 | 60 | 16.9 | 40 | 100 | In Stock | In Stock |
| 17.0 | 60 | 17.0 | 40 | 100 | In Stock | In Stock |
| 17.1 | 60 | 17.1 | 40 | 100 | In Stock | In Stock |
| 17.2 | 60 | 17.2 | 40 | 100 | In Stock | In Stock |
| 17.3 | 60 | 17.3 | 40 | 100 | In Stock | In Stock |
| 17.4 | 60 | 17.4 | 40 | 100 | In Stock | In Stock |
| D (mm) | L1 (mm) | d (mm) | L2 (mm) | L (mm) | Coated | Uncoated |
|---|---|---|---|---|---|---|
| 17.5 | 60 | 17.5 | 40 | 100 | In Stock | In Stock |
| 17.6 | 60 | 17.6 | 40 | 100 | In Stock | In Stock |
| 17.7 | 60 | 17.7 | 40 | 100 | In Stock | In Stock |
| 17.8 | 60 | 17.8 | 40 | 100 | In Stock | In Stock |
| 17.9 | 60 | 17.9 | 40 | 100 | In Stock | In Stock |
| 18.0 | 60 | 18.0 | 40 | 100 | In Stock | In Stock |
| 18.1 | 60 | 18.1 | 40 | 100 | In Stock | In Stock |
| 18.2 | 60 | 18.2 | 40 | 100 | In Stock | In Stock |
| 18.3 | 60 | 18.3 | 40 | 100 | In Stock | In Stock |
| 18.4 | 60 | 18.4 | 40 | 100 | In Stock | In Stock |
| 18.5 | 60 | 18.5 | 40 | 100 | In Stock | In Stock |
| 18.6 | 60 | 18.6 | 40 | 100 | In Stock | In Stock |
| 18.7 | 60 | 18.7 | 40 | 100 | In Stock | In Stock |
| 18.8 | 60 | 18.8 | 40 | 100 | In Stock | In Stock |
| 18.9 | 60 | 18.9 | 40 | 100 | In Stock | In Stock |
| 19.0 | 60 | 19.0 | 40 | 100 | In Stock | In Stock |
| 19.1 | 60 | 19.1 | 40 | 100 | In Stock | In Stock |
| 19.2 | 60 | 19.2 | 40 | 100 | In Stock | In Stock |
| 19.3 | 60 | 19.3 | 40 | 100 | In Stock | In Stock |
| 19.4 | 60 | 19.4 | 40 | 100 | In Stock | In Stock |
| 19.5 | 60 | 19.5 | 40 | 100 | In Stock | In Stock |
| 19.6 | 60 | 19.6 | 40 | 100 | In Stock | In Stock |
| 19.7 | 60 | 19.7 | 40 | 100 | In Stock | In Stock |
| 19.8 | 60 | 19.8 | 40 | 100 | In Stock | In Stock |
| 19.9 | 60 | 19.9 | 40 | 100 | In Stock | In Stock |
| 20 | 60 | 20 | 40 | 100 | In Stock | In Stock |
| 20.5 | 60 | 20.5 | 40 | 100 | On Request | On Request |
| 21 | 60 | 21 | 40 | 100 | On Request | On Request |
| 22 | 60 | 22 | 40 | 100 | On Request | On Request |
Steel Drilling Guidance
- 3×D Drilling: Higher rigidity for general-purpose and shallow-hole machining.
- 5×D Drilling: Suitable for medium-depth holes with stable chip evacuation and coolant supply.
- Point Angle: Select 130°, 135° or 140° according to the application and confirmed drill geometry.
- Refrigerante: External coolant suits standard depths; through coolant is recommended for deeper holes.
Recommended Starting Cutting Parameters
Use the product-specific starting table above and the complete technical guide for application review.
Solid Carbide Drill Cutting Data Guide
Access additional starting speeds and feeds for steel drilling and application testing.
Drilling Product Family Overview
Select the matching configuration according to drilling depth and steel hardness.
HY-HRC55-3D
Short Drilling
HY-HRC55-5D
Medium-Depth Drilling
Custom Series
Non-Standard Geometry
For related drill series, View the Solid Carbide Drill Catalog.
HRC55 Steel Drill Customization
Cutting diameter, flute length, reinforced two-flute geometry, edge preparation and heat-resistant coating can be configured for steel machining within confirmed application conditions. Geometry is matched to the exact steel grade, hardness and machine rigidity.
HRC55-Series Geometry & Edge Preparation
Point form, web thickness, flute profile, margins and edge honing can be configured to support edge stability and controlled cutting in harder steel conditions.
Diameter & Length Options
Metric and drawing-defined diameters can be combined with application-matched flute, reach, shank and overall dimensions.
Servicios de fabricación personalizada y marca propia
OEM manufacturing and private-label supply options for steel and mold-component manufacturers, industrial distributors and tooling brands.
Laser Etching
Custom laser marking for logos, tool codes, diameter specifications, coating identification and batch numbers.
Custom Packaging
Individual protective tubes, diameter labels, multi-pack boxes, custom inserts and private-label packaging options.
Commercial Terms
Flexible MOQ options for standard configurations, custom sizes, trial orders and scheduled repeat supply.
Technical Workflow
Inquiry
Submit the steel grade, hardness, hole dimensions, setup and quantity.
Engineering
Hardness suitability, reinforced geometry, coating and machine rigidity are reviewed.
Commercial
Quotation, MOQ, production schedule and delivery terms are confirmed.
Production
Precision grinding, controlled edge honing, PVD coating and identification.
Quality Control
Diameter, point form, edge condition, coating and runout are inspected.
Inspection & Quality Control
Drill dimensions, cutting-edge geometry and visible surface condition are checked according to the confirmed product specification and application requirements.
Protective Packing for Shipment
Finished drills are protected individually before batch labeling and export-carton reinforcement.
Individual Tool Protection
Each drill is individually protected in a plastic tube to reduce contact damage during storage, handling and transportation.
Batch & Label Verification
Tools are grouped and labeled by specification to support order verification before carton packing.
Export Carton Protection
Batch packaging, cushioning materials and reinforced export cartons are selected according to the order quantity and shipping method.
Reference Lead Time
The following timeframes are general references. Availability and production scheduling are reviewed for each order.
Shipping Options
Shipping arrangements can be selected according to order size, delivery schedule and destination.
Product FAQs
Product-specific information about steel applications, HRC55 machining capability, 2-flute cutting geometry, coating selection and available configurations for this solid carbide twist drill.
Which steel materials is this drill designed for?
This drill is designed primarily for carbon steel, alloy steel, tool steel, mold steel and selected pre-hardened steel. Final suitability should be confirmed according to the exact steel grade, heat-treatment condition, hardness, hole depth and machining setup.
What does HRC55 mean for this drill series?
HRC55 indicates the upper application target for selected steel grades under suitable machining conditions. It does not mean that every workpiece at 55 HRC can be drilled with the same parameters. The steel grade, heat treatment, hole depth, tool overhang, coolant and machine rigidity must be confirmed before selection.
Why does this drill use a 2-flute geometry?
The 2-flute geometry provides a practical balance between cutting-edge strength, drill rigidity and chip space. Its spiral flutes support controlled chip formation and evacuation during blind-hole and through-hole drilling in steel.
Which coating is recommended for steel machining?
AlTiN, AlCrN and other application-specific PVD coatings can be reviewed according to the steel grade, hardness, cutting speed and coolant condition. The selected coating should provide suitable heat resistance, wear protection and cutting-edge stability.
Is this drill suitable for blind holes and through holes?
Yes. It can be configured for both blind-hole and through-hole drilling. The required flute length, usable drilling depth, point allowance and chip-evacuation space should be confirmed before ordering.
What coolant method is recommended?
External coolant is suitable for many short-hole applications, while through coolant is recommended for deeper holes or conditions requiring improved chip evacuation and temperature control. Coolant delivery should remain stable throughout the drilling cycle.
What information is required for a quotation?
Please provide the required diameter, hole depth, steel grade, heat-treatment condition, actual hardness, coolant method, tolerance and estimated quantity. A drawing is recommended for stepped, long-reach or other non-standard drill requirements.
Ordering & OEM FAQs
General information for trial orders, mixed-size purchasing, private labeling and production scheduling.
Do you accept small trial orders?
Yes. Small sample or trial orders are welcomed for evaluating hole quality, chip evacuation, cutting stability and tool life before committing to volume purchasing.
Can mixed sizes be ordered together?
Yes. Standard and custom sizes can be combined in one order when the geometry, carbide grade and coating requirements are compatible. Mixed-size purchasing is suitable for distributors, wholesalers and batch inventory planning.
Can the drill dimensions and geometry be customized?
Yes. The cutting diameter, flute length, overall length, shank diameter, point geometry, flute profile, edge preparation, coolant configuration and dimensional tolerance can be reviewed according to the application or customer drawing.
Is OEM laser marking available?
Yes. Custom shank laser marking such as logo, model number, specifications or batch identification can be reviewed together with OEM labels, individual tool protection and branded packaging requirements.
What is the typical production lead time?
Standard stock items normally have a shorter lead time, while custom dimensions, special coatings, coolant configurations and OEM orders require additional production time. The exact schedule is confirmed according to specification, quantity, coating and current production capacity.
Downloads & Technical Resources
Access product dimensions, series information and starting cutting data for product selection and steel drilling application review.
Need Sizes, Pricing or Custom Options?
Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.
Drawings, size lists and reference photos are welcome.
