Knurled, press-fit heads will not pull out or twist. All-steel body construction and zinc head for rugged use and long life. Unique design with serrated gripping surfaces for superior grabbing power. Comfortable T-loop handle for ultimate gripping power, good for all size hands . Handle loop can be used to inset lever bar, pipe or wrench handle for extra leverage. "Extractor for broken plastic riser stubs. Straight handle. All-steel body. NEW non-painted zinc tip for better grip. U.S. patent D540,632.