We dig a tunnel in search of a cave. The tunnel is fitted with crash barriers (B-profile, 80x120cm). The guardrails are 4-5mm thick and are made of galvanized steel.
In order to avoid having to constantly change the drilling machine or the chuck when connecting the guard rail elements, we were looking for a metal drill with SDS-Plus holder.
Conclusion: there is none.
As a compromise we have tried the ALPEN MultiCut drill bit in the version 12x160mm (www.alpen-drills.com
Conclusion: He has not even lasted 6 holes and then wrinkle. Look at the pictures. That does not work.
Do you have any recommendations?
Thanks, happy digging and cheers.