RBA50
Silver Member
Puckgrinder. About that carbide hole saw. Did you find one that has a pilot drill bit in it, or was it pilotless? I'v never seen one for steel that had a pilot bit, only for ones that worked with electro magnetic base drills. (also on my list) With out some sort of a pilot, its a miserable living h#%l keeping the hole saw from walking, even in a drill press. Curious minds need to know, Im funny that way. Steve
Years ago when I worked maintenance for a forklift company, we had to drill holes in the concrete floor at different times. We used a core drill, which is basically a pilotless hole saw for concrete in a big rotary hammer. To keep it where we needed it, we would make a drill guide from a 2x4 or similar by drilling a hole that matched the core drill, then we put the 2 by on the floor with the hole centered where we needed it, and stood on it while we got the drill started. Worked like a charm. Same idea could be used for pilotless holesaws on the drill press, or even a hand held drill. Use a couple clamps to hold the guide in place.