Blair (BLR13200) "13,000 Series" Blaircutters(tm) - 1/4" (3 Pack)
Features and Benefits: Size: 1/4" Includes 3 in a pack Spring loaded pilot “pops” the slug from the cutter Low cost sheet metal hole making Made in the USAWhen you don’t have a lot of holes to make, Blaircutters™ provide fast, accurate holes in materials up to 3/16" thick. Blaircutters™ are annular cutting tools that cut around the edge of the hole and eject the center as a slug. Because they’re hollow there’s no dead zone as with twist drills. And unlike hole saws, that rip and tear through the material, they quickly give you a quality, virtually burr-free hole.