For Construction, Automotive Repair, And Factory Work, Use The Bettomshin 1 Pc. Bettomshin Round Die Stock Handle Product Information Material: Zinc Alloy Carbon Steel Specification: M16-20 Features 1.5-screw design to fix the dies. 2.Die Stocks, also called die handle are for use in round dies only. 3.This die stock is for using with a 45 mm outside diameter split die. 4.It features screws that allow you to compress the die to take off more material (if the thread is too tight) and alternatively a screw that allows the die to spread open, which allows you to cut unthreaded or damaged bar. ?SIZE?Hole Diameter:45mm/1.77";Thickness:18mm/0.71"?Specification:M16-20(1"=inch) ?MATERIAL?It is made of high-carbon steel,with high hardness and high torque,so it will not break easily.It can prevent oxidation,so it has a long service life. ?FEATURE?With high torque extending handle for easy use and extra leverage power,for super performance on tight nuts. ?APPLICATION?The die handle wrench can help to repair damaged bolts and threads or just remove bolts and threaded rod when used with round dies. ?EASY TO OPERATE?Fix the round dies with 5 adjustable screws.Easily lock the dies in place.