Leather craft diamond pricking iron set upgrade version- 1+2+4+6 prongs 4mm diamond chisles set by kemovancraft. Clamp sets from 4 mm to 1+2+4+6. Process of drawing wire on the surface. Thank you for your point of view.If you have any questions about these products or need a coupon for bulk purchase, please contact us. We specialize in the production of a variety of hand-made leather tools. And we could also make custom steel click matrices. Welcome to our instagram: kemovancraft.