2 ms·
Bore deep enough that the weight of the cantilevered piece breaks off. Or use additional leverage to break that chunk off.
by floxy 2y ago
Bore deep enough that the weight of the cantilevered piece breaks off. Or use additional leverage to break that chunk off.
- thecopy 2y agoAnd then falls on the drill, making it stuck and bends the attachment. This is a solved problem: https://en.wikipedia.org/wiki/Tunnel_boring_machine https://en.wikipedia.org/wiki/Tunnel_boring_machine