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The Bohrcraft twist drill is designed for drilling metal and has a diameter of 7.50 mm. It is made of HSS-G, heat-treated and ground, with right-hand cutting, a helix angle of 20–30°, and an h8 diameter tolerance. Additional grinding of the supporting surface and thinning of the chisel edge in accordance with DIN 1412 C facilitate cutting and reduce cutting force.
It is suitable for unalloyed and alloyed steels with Rm 800 N/mm², heat-treated steels with Rm 1100 N/mm², non-ferrous materials such as copper and bronze, as well as plastics. It is intended for use with stationary drills and clamping equipment. Cooling is recommended during drilling, and the cutting force should be adjusted to the stability of the drill.
- Type: N
- Standards: DIN 1869, DIN 1412 C
- Point angle: 118°
- Material: HSS-G
- Finish: Heat-treated and ground
- Cutting direction: Right-hand
- Helix angle: 20–30°
- Diameter tolerance: h8
- Diameter: 7.50 mm
- Overall length: 225 mm
- Working length: 155 mm
- Quantity: 1
Dimensions
- Pieces
- 1 pcs
- Shape
- Cylindrical
- Shank
- 7.5 mm
- Case
- No
Processing Material
- Metal
- Yes
- Wood
- No
- Building Materials
- No
- Aluminum
- No
- Drywall
- No
- Glass
- No
- Plastic
- No
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.