These are European Stitching Chisel made of SUS440C, which is one of the hardest stainless steels.
The body, which is integrally molded by a precision machine, is rich in design, and the handle is thinned out to lower its center of gravity and realize stable hole punching work.
The blade edge is carefully polished by a craftsman manually to make a precise pitch, ensuring smooth blade passage and release.
There are seven sizes ranging from 1.93 mm to 4.0 mm.
The exquisite spacing, not found in Diamond Stitching Chisel, allows for more delicate stitch expression.
It also features a matte surface finish that also prevents slipping.