Wera 781 B/A Bit Drive (screwdriver) 3/8" Downforce 1/4" (6.3 mm), Male square 1 pc(s)

Connection part of 3/8"-square socket on 1/4"-square socket. For manual and machine operation (non-impact), with ball bearing groove for secure locking of the nut, knurling at the rear end for high grip during manual operation; chrome-vanadium, matt chrome-plated. This text is machine translated.