Item Type: Prong Chisel Material: Tool Steel Color: Silver Size: Hole Diameter: Approx. 1mm / 0.04in Pitch(optional): 4mm, 5mm, 6mm, 8mm Quantity: 3PCS (2 prong, 4 prong, 6 prong) Package List 3 x Prong Chisels When you receive the product, you may think it will be "dirty", please don't worry, because when we send the product will spray anti-rust oil, it has solidified properties, you need to wipe it clean, when you not used for a long time, need to do anti-rust treatment 1Made of high quality steel material for durability 2Suitable for general leather piercing and stitching 3Suitable for leather, leather products, leather engraving and punching, etc 4Designed for artists who work on leather carving techniques 5With prongs, it can punch even holes quickly and easily. 6Punch holes in thick, tough leather without deformation and breakage