SEIWA Seiwa Professional leathercraft tools, a set of 3-prong diamond chisels, 3mm and 4mm widths. - 3-prong diamond chisel, 3mm width - 3-prong diamond chisel, 4mm width - Application: For leathercraft - Features: Professional tools Thank you for viewing. Although it is new and unused, there may be some creasing on the packaging due to amateur storage. Please note that I may not be able to contact you for 1-2 days after your purchase. Thank you for your understanding.