The FTS-1 is designed for cutting new threads as well as chasing existing threads on bicycle fork steering columns. The FTS-1's cutting dies are made from the highest quality high speed steel for precision cutting and long life. The unique thread guide system used with the FTS-1 is specially designed to allow the metal chips and shavings that result during use to fall completely through the guide, preventing damage to the fork threads and the tool.FTS-1 FeaturesIncludes:- Die handle- 1" x 24 TPI cutting die (Part #606)- 1" cutting guide (Part #610)- Also available separately:- 1 1/8" x 26 TPI cutting die (Part #607)- 1 1/8" cutting guide (Part #611)- 1 1/4" x 26 TPI cutting die (Part #608)- 1 1/4" cutting guide (Part #612)- Die handle fits all three sizes of dies and guides.NOTE: the cutting dies of the FTS-1 are not designed for chromed steering columns. Always use cutting fluid such as Park Tool CF-2 when machining.