Multifunctional:- The side knife has 6 holes of different sizes: 2mm, 2.5mm, 3mm, 3.5mm, 4mm and 4.5mm, generally used in leather, belt, plastic, rubber, canvas, cloth, cardboard, saddle and similar materials; especially useful as a leather punch. ERGONOMIC AND COMFORTABLE DESIGN:- The professional punch pliers adopts double lever mechanism, which greatly saves your strength. The handle being padded, non-slip and ergonomic, it is perfect for long and repetitive jobs without causing sore hands or blisters. Powerful penetration makes work easier. HIGH QUALITY AND SAFETY: - Durable cutting pliers are made of plated steel with high hardness, good hardness and high durability. The metal surface is treated with a painting process to prevent oxidation. The brass seat cushion is thickened for added safety. In our kit, we added an abrasive stick for easy cleaning. Perfect Complete Set:- Punch pliers includes leather punch, 2 free spare plates, screwdriver, ruler. The transparent RULER can accurately measure your parts, the screwdriver can replace the spare plate and turn the screw on the belt