مثقاب هوغ ثقب المنشار قاطع الثقب كربيد TcT معدن ثقب المنشار لقمة فورستنر تنغستن

The carbide tips chewed through 16-gauge sheet metal way faster than the bi-metal saws I was using, and after a dozen holes they still cut clean without snagging. Nice to have six sizes from 7/8" up to 2-1/2" in one case so I'm not hunting for the right cutter mid-job.

Bought this set mainly for the 7/8" cutter to punch holes in electrical conduit, and it chewed through a junction box faster than any hole saw I've owned. The carbide tips still look sharp after a dozen holes, which surprised me at this price.

Cut through 14 gauge steel like it was butter, and the carbide tips still look new after about twenty holes. Having all six sizes from 7/8" up to 2-1/2" meant I didn't have to stop and hunt for a different cutter mid-project.