You're looking at a high quality traditional Japanese skiving knife with a slanted blade. This angled Japanese Leather Utility knife is excellent for
Kyoshin Elle Tool
Kyoshin Elle
Yanagiba Leathercraft Hardware 5 Piece Set Silver Stud 10mm x 8mm
Angled Pliers
Kyoshin Elle Leathercraft Tool 36mm Left Handed Utility Leather
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Kyoshin Elle
Skive Leather - Norway
Elle Japan - Australia