Materials: wood and metal Hole diameter: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm Dimensions size of handle: approx. 13 x 2.5 cm Ideal for paper, cards, leather, plastic, etc Package content: 1 screw punch /tool for automotive leather Product Product Description: This screw puncher is ideal for sewing leather, paper, cutting rubber, plastic, fiber, felt and cutting. Features: Automatic hole punch, no more hammering. New design : rotary action. Widely used in sewing, leather crafts, paper crafts, printing, etc. Instructions: --1. Keep the punch at 90, aiming at the drilling position. --2. Hold the handle and press firmly. Turn the awl to cut the leather. --3. Take the punch, the leather will be spit out automatically. Installation guide: Unscrew the nut, install the punch and screw the nut. Contents: 6 in 1 hole punch set Note: Since measurement is taken by hand, sizes shown may vary by 1-3mm. 2. The color may be different from the actual item due to your monitor display. Thank you for your understanding.