Since the main body has a 3.0 mm spare blade, there are 10 spare blades of all types. The screw punch does not need to be hit with a mallet or turned by hand. Also, by replacing the blade part with your favorite size, it is possible to make holes of multiple sizes with one blade. It can be used with any material such as paper, leather, and cloth. Screw punch body (with 3mm spare blade). Spare blade 1.0 / 1.2 / 1.5 / 2.0 / 2.5 / 3.5 / 4.0 / 4.5 / 5.0mm. Vinita cutting board 10 cm x 10 cm Board thickness 6 mm