This is a set of four diamond chisels, essential for leathercraft. The pitch is a fine and elegant 3mm. Made of high-strength high-carbon steel, the sharpness lasts! This set includes 1- to 6-prong chisels, allowing you to work freely from straight lines to fine curves! The round shafts can also be used with drill chuck-type hand presses. ◎Color Black ◎Pitch 3mm ◎Material High-carbon steel I also have other leathercraft supplies for sale. If you would like to purchase them together, I can discuss the price, so please take a look. Leather tools are here ↓ #YLWorksLeatherTool #handmade #Leathercraft #tools #leather