قواطع ثقب كربيد 2-3/4 بوصة، 2-3/4 TcT تنجستن، ثقب صفائح معدنية، Drill Hog

Cut through 16 gauge steel like it was butter, and the carbide tips still look sharp after about twenty holes. The built-in flange keeps it from walking on the drill press, which was my main worry.

Bought this to punch clean 2-3/4" holes through sheet metal for a duct project and it chewed right through without wandering. The tungsten carbide teeth still look sharp after a dozen cuts, which I can't say for the cheap bi-metal ones I burned through before. Shank fits my 3/8" drill fine.

The built-in flange keeps this thing from walking on me, which was my main gripe with the hole saws I used before. Punched clean 2-3/4" holes through a run of electrical panels and the carbide teeth still look new. Cuts fast enough that I'm not standing there burning up a drill.