Package: Pack according to your choice (1 piece or 1 set,Pls choose from the option) Description Material: high quality 4Cr13 steel, with high hardness and high wear resistance,suitable for high strength punching. Hole Diameter: chisel head is about 1mm; the round hole head is about 1.5mm. Hole spacing: 3.0mm 3.38mm 3.85mm 4mm available 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. Suitable for some leather goods with rough style,hand sewing steering wheel set punching, seam of large leather goods, hand sewing sofa seat cover. It also use into invering suture. The holes are not as big as those made by French style pricking iron, so there is almost no trace of holes after turning the bags. The smaller the cut hole is, the better. Features This is new high quality round hole punch,highly recommended to leather craftsmen Why choose our chisel Here are a few reasons. 1-------The teeth are removable and replaceable:It can be replaced to the same chisel teeth ,or change to the round hole punch teeth.If the teeth are damaged after use, they can be replaced without changing the handle, which can save costs 2-------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. 3-------High quality material: black smooth electroplating on the surface, acid and alkali corrosion resistance, high hardness and wear resistance, suitable for intensive stamping and long-term leatherworking craft. 4-------Multiple standards: 6 models avaible(3.0mm/3.38/3.85/4mm/5mm/6mm) , works perfectly in your stitching projects. 5-------Original and practical design. not easy to block, leather can come out easily . Use Notice: Because the sharp and thin tip,please don't overexert when punch,and please use a soft things like leather to protect it,it maybe damage if you use on the hard object. Please purchase the round hole head if you want to more large holes. Chisel head is about 1mm; the round hole head is about 1.5mm. The chisel head also use into invering suture. The holes are not as big as those made by French style pricking iron, so there is almost no trace of holes after turning the bags. The smaller the cut hole is, the better. This chise of round hole punch head is mainly suitable for leather goods with rough style.