Extra wide 3" band for better grip and reduced canister damage. Fits sizes 4-1/8" to 4-1/2" (105 to 115mm). For use with larger hard to remove oil filters. For use with a 1/2 inch square drive tools. Designed for the high torque requirements of truck filters Heavy duty oil filter wrench with wide band for oil filter sizes 4-1/8" to 4-1/2".