Lisle 58500 Hook for Shaft/Seals Removes cam shaft and crank shaft seals without damage to the shaft Fits idler pulleys requiring 13mm, 14mm, 15mm, 16mm, 18mm, 19mm hex and both 3/8" and 1/2" square drive sizes For more information check the main Lisle tool- 58430 Replacement part for Lisle tool- 58430