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5 x twist drill bits for metal HSS-R
This product consists of:
- 1 set of 5 HSS-R twist drills each with a diameter
- Diameter: 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 7.5 | 8.0 | 8.5 | 9.0 | 9.5 | 10.0 mm
Product description
- Spiral groove with for chip removal
- Conical surface grinding
- Roll-rolled according to DIN 338 (HSS-R)
- Cylindrical shaft, short
- Right-cutting
Suitable for:
- alloy steel
- unalloyed steel
- Non-ferrous metals
- Grey cast iron
- Hard plastic
HSS-R twist drills are suitable for standard drilling in steel and cast steel up to 800 N/mm², grey cast iron, malleable cast iron, spheroidal cast iron, sintered iron, nickel silver and graphite.
Drilling is a mechanical cutting process used to create circular holes in a material by machining. The hole is called a bore. A distinction is made between blind holes and through holes. Core holes are used to cut threads into these holes.
Core holes have a specific dimension, tailored to the thread to be cut. These drills are also called core hole drills. In the individual
The corresponding core hole dimensions can be found in the tap tables. These dimensions must be observed at all times when drilling threaded holes.
Short twist drills have a rake angle (also called helix angle) of 27 degrees, a point angle between 118 and 135 degrees, and a cylindrical shank.
Type N is suitable for materials with normal cutting properties. Depending on the manufacturing process, a distinction is made between roll-formed and ground twist drills.
Other special You can find explanations on the use of twist drills in the drill dictionary or in our drill blog . Enjoy reading!