Precise Step Drills - H.S.S. & T.I.N. Coated

• Use for steel, copper, brass, aluminum and other thin materials.
• Also ideal for drilling through wood, composition board, and even plexiglass and plastics which often crack with standard twist drills.
• Handle thicker materials by drilling from both sides of work surface,
• Use for reaming, deburring and cutting though soft wood or plasterboard.