Designed to cut new threads on fork steerers, or clean up existing threadsExpandable cutting dies are made from the highest quality high speed steel, to ensure a precision cut and a long lifeThe thread guide system allows the metal shavings produced to fall through the guide, preventing damage to the threadsIncludes a 1 inch x 24 tpi cutting die, and a 1 inch cutting guide1-1/8 inch x 26 die, 1-1/4 inch x 26 die, 1-1/8 inch guide, and 1-1/4 inch guide are also available, and will fit the same handle