For This automotive pulley puller provides perfect pulls for one- and two-groove pulleys on alternators and power steering pumps in your vehicle. The pulley puller is constructed of drop-forged carbon steel for maximum durability and toughness to withstand heavy use. Adjustable jaw tension ensures a good grip as it pulls, making this a quality tool for any mechanic and car hobbyist repairing the inner workings of most vehicles! Heavy duty construction pulley puller Adjustable jaw tension Pulls pressed-on one- and two-groove pulleys on alternators and power steering pumps Also removes some alternator bearings Drop-forged, machined and heat-treated carbon steel construction Finish: Black Oxide Material: Carbon Steel Maximum jaw opening (in.): 1-3/8 in.