1.0mm

Card Slots (2.5oz)

2.0mm

Wallets & Bags (5oz)

3.0mm

Straps & Belts (7.5oz)

4.0mm

Heavy Duty (10oz)

Chisel & Thread Match Matrix

Identify Chisel SPI

Select Thread Diameter

Test & Refine

Determine the stitches per inch (SPI) of your pricking iron or chisel. Common sizes range from 3.0mm to 5.0mm.

Choose a waxed polyester thread diameter (0.6mm to 1.0mm) that complements your chisel's SPI for optimal stitch definition.

Perform test stitches on scrap leather. Adjust thread diameter or chisel size until you achieve your desired stitch aesthetic and durability.

Verify Material First

Order physical leather swatch sample sets to confirm color, temper, and finish before your bulk purchase.