AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
How to Do a Hammer-Drill Positioning
A straightforward, hand-drilled bolt placement for someone with a lot of experience might take a bare minimum of about 20 minutes of constant work. A more difficult bolt placement might take the better part of a day. "It's one of those moments you kind of, I was questioning my own sanity," he says.