DentFix DF-MP050K Pneumatic Punch Kit - The ultimate hole punch kit provides the power and versatility to get any job done. The unique design of the cutter shears the metal rather than forcing it’s way through like other flat head cutters. This shearing action creates no distortion and extended life of the tool and cutters. The included flanging head is 1 inch wide. Hole punch sizes are 4.0 mm, 5.5 mm, 6.5 mm and 8.0 mm. Hole punch depth on 8.0mm is 3.0mm. A deeper 8.0 mm head is now included (DF-MP050DT) for a LIMITED time. 1 year warranty.