LC Diamond Stitching Chisel 3mm 2 Prongs + 6 Prongs Made in Japan

The “Pitch” is the center-to-center hole spacing in millimeters.

You can calculate the SPI(Stitches per inch) from Pitch this way.

SPI = 25.4 / Pitch

For example, as for 3 mm-pitch tool, it has 25.4 / 3 = 8.5 stitches per inch.

LC Diamond Stitching Chisel’s teeth are polished by hand work by a craftsman.

This is a cost effective tool made from heat-treated iron, and finished with black coating for corrosion resistant.

Material: Iron (heat-treated)

Finish: Black coating, Knurled handle

Made in Japan