The Diager Ultimax 646 drill bit for construction materials has a solid, one-piece head with 10 active cutting edges and 50% more carbide. The combination of concave and convex edges, along with its demolition action, enables drilling into reinforced concrete. The 130° sharpening angle and aggressive centering tip make penetration easier.
The side edges feature a wear indicator, while drilling remains concentric and precise. Power is concentrated along the drill bit’s axis, vibrations are reduced, and its performance makes it suitable for use with powerful rotary hammers.
- Drilling material: Construction materials
- Shank: SDS Max
- Diameter: 25 mm
- Working length: 1360 mm
- Total length: 1500 mm
- Material: Carbide
- Cutting edges: 10
- Pieces: 1
- Product Number
- 166D25L1500
- Drill Material
- Carbide
- Suitable for
- Masonry
- Drill Top
- SDS Max
- Set with Tips
- No
- Pieces
- 1 pcs
- Diameter
- 25 mm
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.