1/2 Inch Square Female to 1/2 Inch-20UNF mount adapter;It uses a standard that will work with everything from a economy chuck to a high end chuck | Easily convert your existing air or power wrench into an impact or hammer drill with this chuck converter | Quick Release Converter for Impact Wrench | Heavy duty design | Ideal for mechanics, engineers, carpenters or DIY enthusiasts
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Item# : SPM18137251104
Model # : RNAB071Y5BFPM