مجموعة مثاقب Drill Hog USA كهربائي 3/16-1/2، 7/16-1-1/8، 1/4-1-3/8 بوصة 3 قطع M7

The 12 step sizes on the mid bit handled every knockout I threw at it, from 7/16 up to 1-1/8. Cuts through 16 gauge steel panel clean, no chatter. Nice to have the full range in one set instead of swapping bits constantly.

Bought these mainly for the 7/16 to 1-1/8 bit since the 12 step sizes cover just about every knockout I run into. The M7 steel stays sharp after a couple dozen holes in mild steel, which I wasn't expecting at this price. Only wish the case held them a bit tighter, but that's minor.

Punched through 14-gauge steel with the 7/16 to 1-1/8 bit and it cut clean, no walking or grabbing. The M7 coating still looks new after a dozen holes, which I didn't expect at this price.