EXTOL INDUSTRIAL Step drill bit with chip breaker, 4-32mm/by 2mm, HSS-Co 8701194
EXTOL INDUSTRIAL Step drill bit with chip breaker, 4-32mm/by 2mm, HSS-Co 8701194
The EXTOL INDUSTRIAL step drill bit is designed for drilling holes with a continuously increasing diameter from 4mm to 32mm. It is suitable for working with metals, plastics, and steel sheets up to 4mm thick. The drill bit is made from HSS-Co high-speed steel with 5% cobalt, which gives it high hardness and wear resistance. The TiAlN surface coating increases its thermal resistance and service life, even during demanding use.
Key features of the EXTOL INDUSTRIAL 4-32mm HSS-Co step drill bit
- Step design for 15 diameters from 4mm to 32mm in 2mm increments
- Made from HSS-Co high-speed steel with 5% cobalt content
- TiAlN surface coating for increased thermal resistance
- Three-sided 8mm diameter cylindrical shank for a secure grip
- Can be repeatedly resharpened for a longer service life
- Recommended speeds for steel 500–1200rpm and for stainless steel 250–700rpm
- Total length 101mm
Durable design for smooth drilling
The drill bit is based on high-speed steel (HSS) with a 5% cobalt alloy, which ensures high hardness and wear resistance. In addition, the surface features a TiAlN coating that increases thermal resistance and enables drilling at higher speeds. The design with a chip breaker helps to ensure smooth drilling without deforming thin materials such as sheet metal. The three-sided shank prevents the drill bit from slipping in the chuck and contributes to precise power transfer.
Specifications
Specifications
Features
Packaging
| Code: | EXChobb018 |
| Warranty: | 24 months |
| Manufacturer information |
Madal Bal a.s., 760 01 Zlín, Bartošova 40, 577 599 777, [email protected] 
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