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Features
- High-Rigidity Geometry for Hardened Steel Machining: The combination of a small helix angle, specialized flute geometry, and increased core thickness delivers maximum tool rigidity, ensuring superior drilling performance in high-hardness steels above HRC45.
- Negative Rake Angle for Maximum Chipping Resistance: Features an innovative negative angle design that reinforces the cutting edge, effectively protecting it against chipping during demanding operations to ensure extended tool life and reliability.
Application
- Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC~55), high-hardened Steels (~HRC65).
FEATURES
Maximum Rigidity Design1.Small helix angle
2.Special geometry
3.Large core thickness
☑️ Superior drilling performance for above HRC45 steel.
☑️ High rigidity.
2.Special geometry
3.Large core thickness
☑️ Superior drilling performance for above HRC45 steel.
☑️ High rigidity.
Stronger Cutting EdgeNegative angle design for protecting the edge against chipping.
| Hardness(Hv) | 45(GPa) | |
| Thickness(µm) | 2~4 | |
| Oxidation Temp.(°C) | 1200 | |
| Friction Coefficient | 0.35 | |
| Application | ||
| ◎ Excellent | Pre-hardened Steel, High-hardened Steel(~HRC50), High-hardened Steel(~HRC55), High-hardened Steel(~HRC60) | |
| ○ Good | High-hardened Steel(~HRC65) |
Specification
Max Effective Drill Depth(L1)= Flute Length(L2)-Diameter(d)*1.5
| Dimensions | ||||
| Mode | Diameter | Flute Length | Shank Diameter | Full Length |
| d | L2 | D | L | |
| HD0262 | 2.6 | 14 | 4 | 44 |
| HD0282 | 2.8 | 16 | 4 | 46 |
| HD0302 | 3.0 | 16 | 4 | 46 |
| HD0332 | 3.3 | 18 | 4 | 48 |
| HD0342 | 3.4 | 20 | 4 | 50 |
| HD0352 | 3.5 | 20 | 4 | 50 |
| HD0382 | 3.8 | 22 | 4 | 52 |
| HD0402 | 4.0 | 22 | 4 | 52 |
| HD0422 | 4.2 | 25 | 6 | 68 |
| HD0432 | 4.3 | 25 | 6 | 68 |
| HD0442 | 4.4 | 25 | 6 | 68 |
| HD0452 | 4.5 | 25 | 6 | 68 |
| HD0502 | 5.0 | 32 | 6 | 72 |
| HD0512 | 5.1 | 32 | 6 | 72 |
| HD0522 | 5.2 | 32 | 6 | 72 |
| HD0552 | 5.5 | 35 | 6 | 75 |
| HD0602 | 6.0 | 35 | 6 | 75 |
| HD0652 | 6.5 | 40 | 8 | 80 |
| HD0682 | 6.8 | 45 | 8 | 85 |
| HD0692 | 6.9 | 45 | 8 | 85 |
| HD0702 | 7.0 | 45 | 8 | 85 |
| HD0752 | 7.5 | 45 | 8 | 85 |
| HD0802 | 8.0 | 50 | 8 | 90 |
| HD0852 | 8.5 | 50 | 10 | 95 |
| HD0862 | 8.6 | 57 | 10 | 102 |
| HD0882 | 8.8 | 57 | 10 | 102 |
| HD0902 | 9.0 | 57 | 10 | 102 |
| HD0952 | 9.5 | 57 | 10 | 102 |
| HD1002 | 10.0 | 63 | 10 | 107 |
| HD1022 | 10.2 | 63 | 12 | 110 |
| HD1032 | 10.3 | 63 | 12 | 110 |
| HD1052 | 10.5 | 63 | 12 | 110 |
| HD1082 | 10.8 | 71 | 12 | 118 |
| HD1102 | 11.0 | 71 | 12 | 118 |
| HD1152 | 11.5 | 71 | 12 | 118 |
| HD1202 | 12.0 | 71 | 12 | 118 |
TECHNICAL INSIGHTS
Founded in 1998, Speed Tiger is driven by the belief that technology creates value and quality builds trust. Aiming to be the leading Asian cutting tool manufacturer, we empower global manufacturers with high-efficiency tools to achieve superior quality and innovation. Our mission is to deliver cutting-edge expertise in tool design and manufacturing worldwide, grounded in integrity, quality, and customer satisfaction.