Revolving Belt Punch Revolving Belt Punch can be used for punching additional holes into leather watch straps. The smallest holes of this revolving belt punch can be used to add additional holes to leather watch bands. Nickle plated steel handles, rotating drum with multiple hardened steel punches, and a locking clip make this a useful strap punching tool. A drum locating spring ensures accurate positioning of the hardened steel punches. Hole diameters are 2.0, 2.5, 3.0, 3.5, 4.0 and 4.5mm.