Bosch says its straight shank rebar cutters drill through rebar 36% faster and last twice as long as comparable bits. Bosch designed the cutter to be used with hammer drills and rotary drills, tapering the shank to reduce weight and lessen vibrations. Steep spirals draw debris out quickly and a relief hole at the tip disperses heat. Drill bits come in diameters ranging from 3/8-inch to 1-1/2 inch. 877.267.2499. www.boschtools.com.