From compact everyday fastening to recessed screws that need a longer bit, the Wera 840 Z family lets you choose your reach without switching away from a familiar hex profile. Select the length first, then the metric or imperial tip size. Each available combination is sold individually so you can build a focused toolkit or replace the bit you use most.
Hex-Plus increases the contact area inside the screw recess to help reduce the risk of rounding. The tough Z design suits work in hard materials, while a 1/4-inch hex shank fits an appropriate bit holder for the selected connecting series. These are standard Z bits, separate from the BTZ BiTorsion range.
Key Features
Hex-Plus profile for standard hex-socket screws.
Tough Z design for fastening into hard materials.
Available lengths of 25, 50, 89, and 152 mm.
Metric and imperial tip sizes, with availability varying by length.
1/4-inch hex shank for compatible holders.
Individual replacement bits, not packaged sets.
Technical Specifications
Series: 840/1 Z for 25 mm bits; 840/4 Z for longer bits.
Tip size is the screw size, not the shank size.
Choose a holder compatible with the selected bit connecting series.
Country of origin: Czech Republic.
One bit per selected variant. Holder and storage are not included.
Choose the size, choose the reach, and keep your hex toolkit ready.
