Bosch HC4070 Spline rotary hammer bits are carbide tipped and fit Bosch as well as other spline hammers. Speed-X combines the life and durability you expect with the fastest hammer carbide drilling speed ever. It performs even better than any other bit in precision anchoring and deep drilling applications.
- Extremely robust and aggressive solid tungsten carbide S-cutter
- Active centering tip for optimum guidance when drilling in concrete and reinforced concrete
- Wear mark indicated accurate hole diameter
- Short head gets dust out fast and reduces heat build-up
- Inclined side cutters for aggressive drilling