Another of the most popular jaws for full-size chucks – Pin jaws are ideal for smaller chuck projects, including pre-bored material such as peppermills and similar projects. The end of the jaw is dovetailed, so it can be used on its own as a delicate grip – or the jaw can be inserted full length using the back jaw face as a register and providing wall support to prevent the workpiece from being knocked from a dovetail only grip. The dovetail at the end provides additional security in expansion mode.

Compression range
SC1: 1/4" - 9/16"
SC2: 1/4" - 1"

Expansion range
SC1: 1-1/2" - 1-7/8"
SC2: 1-1/2" - 2-9/32"

Chuck Compatibility
Only compatible with SC1/SC2 Mini Chucks