Made to hold any of the FIW38 impact guns, i.e 3/8" Milwaukee impact guns, magnetic options are great for mounting to your vertical car lift or whatever you are working on really. Magnets are very strong none of that wimpy stuff; tray version uses 2 x 210N (~40kg max rated holding force) magnets with the socket storage version using 3 x 210N (~60kg max rated holding force) magnets have a protective rubber foot which so long as you keep them clean of swarf and are careful when you remove them shouldn't scratch the mounting surface.
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