High torque screwdriving without slip
- Reliable grip by Wera: The Hex-Plus profile gives you larger contact surfaces to prevent rounding out socket screws.
- Extended reach capability: With an overall length of 89 mm, you easily access deep-set fasteners in tight spaces.
- Tough viscous durability: The tough viscous steel construction prevents premature tip breakage during high-load fastening jobs.
Fasten 6 mm hexagon socket screws with confidence using the Wera 840/4 z Hex-Plus hex bit. The innovative Hex-Plus profile provides larger contact surfaces inside the screw head, significantly reducing the risk of rounding out fasteners under high loads. With an extended length of 89 mm, you easily reach deeply recessed screws during maintenance, machinery, or furniture assembly tasks. Its tough viscous steel build prevents premature tip breakage when tackling demanding jobs. Equipped with a standard 1/4" hex drive, it fits straight into your bit holders or drill chucks for smooth, efficient operation.
Scope of delivery
- 840/4 Z bits, 6 x 89 mm
Product description
Tough Wera bits for hexagonal socket screws, for universal use. Hex-Plus offers larger contact surfaces in the screw head. The notch effect is reduced to a minimum and the destruction of the screw is nearly eliminated. 1/4" hexagonal, suitable for holders as per DIN ISO 1173-F 6.3.
- For hexagonal socket head screws
- Hex-Plus allows socket head screws to live longer
- Tough for hard materials
- 1/4" hexagon drive (Wera connecting series 4)
Application
- Hexagon socket screws
Drive
- 1/4" hexagon, suitable for DIN ISO 1173-F 6.3 bit holders
Design
- Hex-Plus, tough, for universal use
Features and benefits
- Hexagon socket screws are a problem, because the contact surfaces that transfer the force of the tool to the screw are very narrow. The consequence: the head of the screw can be damaged, usually rounding out the recess. Hex-Plus tools have larger contact surfaces to prevent this, driving from the flats of the recess, rather than the corners. Good to know: Hex-Plus tools fit into every standard hexagon socket screw!
- Tough Wera bits prevent the tip from breaking prematurely. Z-bits usually are the bit for universal screwdriving applications.