Wuta Removable Head Hole Punch Leather Chisel Stitching Professional, 2+6 ?2 Interchangeable Modes: In the circular chisel mode, the leather holes will shrink, and the sewing effect will be more refined. In the punch mode, the leather holes will be larger and easier to sew. You are free to choose different styles to complete your artwork. ?High-quality Material: 4Cr13 stainless steel, black smooth electroplating on the surface, acid and corrosion resistance, high hardness and wear resistance, suitable for intensive stamping and long-term leatherworking craft. ?Unlock A Variety Of Leather Sewing Methods: In addition to traditional saddle stitch, there are Single Stitch, Z Stitch, Baseball/V Stitch, Butt Stitch, Cross Stitch, Box Stitch, French Stitch, etc. ?Multiple standards: 6 models available(3.0/3.38/3.85/4/5/6mm), work perfectly in your stitching projects. Original and practical design. Not easy to block, leather can come out easily. ?Package Includes: 3.85mm 2 prong+3.85mm 6 prong with 10 pcs round hole heads, 1 L-wrench, and 3 screws. Reusable and save money.