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Combination holder for bits with 4 mm halfmoon drive (Wera series 9) and 4 mm HIOS drive (Wera series 21): quick-release chuck, 1/4" hexagonal drive, suitable for power screwdrivers with a take-up as per DIN ISO 1173-F 6.3.
Universal holder with quick-release chuck
For a firm, wobble-free connection between holder and bit with quick-release action. Simply push sleeve forward to change bits. The magnetic design enables simplified positioning of the screw.
For Halfmoon and HIOS Bits
Features a combination bitholder for both bits with halfmoon and bits with HIOS drive.