•Fits idler pulleys requiring 13mm, 15mm, 16mm, 18mm or 3/8" square drive socket size, which are on most all domestic applications.
•Select proper socket size and position tool idler arm, (handle is only used for 16mm applications) pulley or pull to relieve tension).

•Fits idler pulleys requiring 13mm, 15mm, 16mm, 18mm or 3/8" square drive socket size, which are on most all domestic applications.
•Select proper socket size and position tool idler arm, (handle is only used for 16mm applications) pulley or pull to relieve tension).