Item list

Diamond Hole Punches 4mm

Hand-sewing Tool

Diamond Hole Punches 4mm
菱目打 4mmピッチ
菱目打 4mmピッチ
菱目打 4mmピッチ

Item Name

Diamond Hole Punches 4mm


1prong ¥500JPY
2prongs ¥750
3prongs ¥800
4prongs ¥850
6prongs ¥1,350
8prongs ¥2,400


4mm(space between prongs) 1・2・3・4・6・8 (prongs)


Punching tool for hand-sewing


The hole shape of the conventional punching tool was close to square, not like a diamond.The blade had a rough finish so there was damage on the leather when you pull off the tool.
For smooth work, efficiency and a beautiful hand-sewn touch, we have developed this item.

①The whole tool is tempered so there’s no bent or deformed tool. Black coating prevents rust.

②The tool’s blade is sharpened and ground on a one by one basis so there’s no damage on the leather sheet when you pull off the punching tool from it. The blade part is covered with resin to protect it.

③We make the blade angle as sharp as possible so the hole shape can be much narrower and make the seam beautiful and clean.

④Knurling the body part makes it nonslip so as to get easier grip to work with.

⑤Engraving the size(space between prongs) and “MADE IN JAPAN”.

Usage & Maintenance

User's Manual

Please feel free to inquire about anything and also asking for quotations.

Please feel free to inquire about anything and also asking for quotations
The production and sales of leather crafting tools. Japanese leather tools. Oka Factory & Co.,Ltd.

Oka Factory & Co.,Ltd.

272-0827 5-10-7, Konodai, Ichikawa-city, Chiba


Monday - Friday, 8:30 a.m. - 6:00 p.m.

FAX +81-47-713-8661

Please email, phone or fax us for purchasing

- We are a manufacturer so it can take time to ship.

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