Park Tool FTS-1 Fork Threading Set for 1" SteerersPark Tool head and steerer tube cutting tools in sets. SHIS standard is EC56 Designed for cutting new threads and for chasing existing threads on fork columns Includes die handle, 1" x 24 tpi die, and 1" cutting guide Expandable cutting dies are made from high speed steel for precision cutting and long life Thread guide system allows metal shavings to fall through the guide and prevent damage