French Style Pricking Iron Die-steel Leather Punching Tool Polish with 2.7/3.0/3.38/3.85mm Size Available Specification: Material: DC53 Cold-work Die Steel Type: Obverse and Reverse direction Sizes: 2.7/3.0/3.38/3.85mm (4 models) Dimensions: Overall length:116 mm, Handle width:13 mm, Handle thickness: 8.2 mm, Prong length:9.8 mm, Prong lip thickness: 0.2 mm.Process: Entirely polished. Package: Pack 1 chisel or 2* chisels (according to your choice). Original and practical design. This sharp punch easily cuts through leather as 4.5mm or 11 oz. Sizes: Prongs are in 9.8 mm length, this sharp punch can easily go through thickness 4.5mm or 11oz leather. (5.0mm or 12.5 oz theoretically). Model 7 (3.85mm prong-spacing), with 2 standards, one with 2 prongs, the other with 8 prongs.Prong width:2.4mm.Model 8 (3.38mm prong-spacing),with 2 standards, one with 2 prongs, the other with 8 prongs.Prong width:2.2mm.Model 9 (3.0mm prong-spacing),with 2 standards, one with 2 prongs, the other with 5 prongs.Prong width:1.8mm.Model 10 (2.7mm prong-spacing),with 2 standards, one with 2 prongs, the other with 5 prongs.Prong width:1.6mm. Prongs are in 9.8 mm length, thickness 4.5 mm or 11oz leather. (5.0 mm or 12.5 oz theoretically). Note: Because the sharp and thin tip,please use a soft things like leather to protect it when you punch,it maybe damage if you use on the hard object,especially in winter. Model 7,8,9,10 stands for the amount of stitches in 1 inch. For example, model7, you will stitch 7 times in 1 inch length.