Rober Sorby -Thread Cutters 10 TPI x 2 pcs - Unhandled

Thread cutters come in pairs and include a tool for exterior threads and one for cutting matching interior threads. Perfectly designed for making screw tight lids on boxes and caskets, this fascinating and practical aspect of woodturning includes a range of cutting tools that have been produced from High Speed Steel. They have been designed with a unique, enhanced helix angle specially designed for use in wood.

Instructions - PDF