Irwin Tools 10233 Unibit® 9-Hole High Speed Step Drill, 1/4" - 3/4" Autumn_Cleaning make sure that the finish

make sure that the finish is clean and has had all wax and polish removed

Manual external bleed allows for operation without electrical power

crush rated

Faucet System or Bottle – no filter soaking needed

Irwin Tools 10233 Unibit® 9-Hole High Speed Step Drill, 1/4" - 3/4" Autumn_Cleaning make sure that the finishIdeal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Features 3 flatted shank, shank size 3 8". Single fluted cutting edge assures true round holes & allows greater control. Hole sizes: 1 4" 3 4" Maximum material thickness: 1 8" Number of holes: 9 steps 3 flatted shank Shank size 3 8" Single fluted cutting edge assures true round holes & allows greater control Ideal for drilling holes