For use with ½ inch square drive tools. Heavy-duty oil filter wrench. Designed for high torque requirements of truck filters. 1-1/2 in. wide band for added strength and increased grip area. Removes truck oil filters from 5-1/4 in. to 5-3/4 in. (135 mm to 150 mm) in diameter. Not for use with power tools. Made by Mac Tools.