Kimball Midwest Introduces "Roto-Kut Ultra" Hole Cutters. Roto-Kut Ultra hole cutters are heavy duty hole-makers the can cut virtually any material up to 1" thick, including sheet metal, metal plate, pipe, iron, tubing, FRP and plastics. Roto-Kut Ultra is proven to cut up to 10 times faster and last up to 10 times longer than heavy duty drill bits, and can last up to 500 times longer than hole saws. In actual tests using hand held 3/8" drill motors Roto-Kut Ultra completed a 5/8" hole in 1/4" steel plate in less than 30 seconds.
