From the bottom hole to the punch of the internal cone-hole anchor, you can work at once
[Use]
Internal cone-hammered anchors for drilling and punching
Features:
Comes with a stopper so you can firmly drill holes to the desired depth.
You can install the hammer holder and drive it without removing the bit from the hammer drill, so you can save wasted effort
The blade edge uses 3 deltagon blades, making drilling close to a real circle and the anchor is inserted smoothly.