Oka Diagonal Hole Punch III French Style 4 Prong 4mm Leathercraft Tool Stitching Chisel, with Non Slip Handle, for Leather Sewing | Goods Japan

Oka Diagonal Hole Punch III French Style 4 Prong 4mm Leathercraft Tool Stitching Chisel, with Non Slip Handle, for Leather Sewing


This stitch punch makes flat holes that are consistently spaced and sized, perfect for stitching leather. Use this around the edges of your leather to punch holes quickly and easily.



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This French-style stitch punch from Oka is great for punching sewing holes in your leather and has flat prongs rather than diamond ones, giving your leathercraft creations clean and unique stitches. Fashioned from tempered steel, this quality stitching chisel is made in Japan to the same high standards as other Oka diagonal hole punches.

This 4 prong stitching chisel punches multiple holes at once, great to use along a straight line such as on the edges of your leather. To use this stitching chisel, simply place the tool over the leather you wish to add stitch holes, then hit with a soft-headed hammer until a hole is made. No need to use a leather awl, just punch and sew.

Available sizes (each sold separately):

  • Diagonal Hole Punch Ⅰ (3mm)
    • 1 prong
    • 2 prong
    • 4 prong
    • 6 prong
  • Diagonal Hole Punch Ⅱ (3.5mm)
    • 2 prong
    • 4 prong
    • 6 prong
  • Diagonal Hole Punches Ⅲ (4mm)
    • 2 prong
    • 4 prong
    • 6 prong
  • Diagonal Hole Punches Ⅳ (5mm)
    • 2 prong
    • 4 prong
    • 6 prong

The sizes in mm are the spaces between prongs.

Please note, the prongs on this tool are highly tempered, which makes them very hard, but somewhat brittle, so that overstressed prongs would break off, rather than bend. This is by design, as bent prongs of lower quality stitching chisel deform more easily, not only ruining the tool, but also have the potential to ruin your leatherwork by producing permanent uneven stitch holes if undetected. The highly tempered prongs of this quality tool have a dual purpose: To protect your leatherwork from uneven stitching by having the prong break, rather than bend, when overstressed. Safeguarding you from uneven stitching of a bent tool, while giving longer lasting points that require less sharpening and greater penetrating power. This dual feature is of great benefit as it gives you peace of mind, knowing there is no chance of even a single uneven hole to ruin the leather masterpiece you've spent many hours working on.

Please note, the professional nature of this tool means it requires special care. Always use a soft headed hammer (never metal) and tap it into your leather work gently, when removing, always pull it out of your leatherwork straight, never shift it side to side to loosen it or this could snap the prongs. Avoid using leather that is so thick it makes removal difficult. If you work with leather that is thick enough to make removal difficult then a wider stitching is recommended. Please store this tool away from other tools or hard objects, do not drop this tool or strike on a hard surface.

Item ID 43323
Condition New
Manufacturer OKA Tools
Manufacturing country Japan
Net weight 114 g
Weight 214 g