| A | B | C | Weight |
|---|---|---|---|
| 20 | 50 | 230 | 0,045 |
A metal drill bit with a carbide insert, designed for demanding applications where standard HSS drills are no longer sufficient. Thanks to the use of extremely hard materials, it offers significantly improved durability and cutting performance.
Diameter: 9 mm
Overall length: 90 mm
Working length: 55 mm
Speed: 1000–1500 rpm
Cutting element: YG8 cemented carbide
Hardness: 90 HRA (~70 HRC)
Body: 40CR steel
YG8 cemented carbide reaches a hardness of approx. 90 HRA (~70 HRC), which means:
the cutting edge wears much more slowly
it retains sharpness even during intensive use
it allows drilling in harder-to-machine materials
This solution is especially appreciated by users working in continuous or serial production.
Compared to standard drill bits:
the cutting surface wears down much more slowly
the tool maintains its performance parameters for longer
the need for frequent drill replacement is reduced
Result: savings in time and operating costs
Drilling in metals generates very high temperatures. Cemented carbide:
does not lose hardness as quickly as HSS
does not dull due to overheating
ensures stable cutting even under higher loads
Cemented carbide, in addition to its advantages, also has specific properties:
it is hard but brittle
it does not tolerate impacts or hammering action
it is sensitive to lateral loads and misalignment
Therefore, for best results it is recommended to:
use stable guidance (e.g. a drill press)
avoid “manual angled pressure”
work with properly selected speed and feed rate
Log in 
Register
