Kincrome Punches & Chisels are manufactured from hardened and tempered top grade Chrome Vanadium Steel. This increases strength and durability, allowing them to be the perfect balance of tough but not brittle. Kincrome hollow punches are perfect for punching holes a wide range of materials. The special design of the cutting edge prevents jamming of the material allowing for multiple easy cuts. The punches can cut holes in gasket material, leather, rubber, canvas, cardboard, plastic & other soft materials. The knurled finish ensures maximum grip and avoids movement while the punch is being struck.