Tough viscous Wera bits for hexagon socket screws for universal use. The Hex-Plus profile offers a greater contact surface in the head of the screw. The notching effect is therefore reduced to a minimum and damage to the screw head more or less eliminated. ¼" hexagon, suitable for holders as per DIN ISO 1173-F 6.3. Hexagon socket BO screws have a protruding pin in their drive profile. This prevents any unauthorized loosening since the "normal" hex tools cannot move these screws. ¼" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

The Wera Tools 840/4 Z Hex-Plus BO Series is a specialized tool designed for professionals who work with hexagon socket screws with safety pins. The "BO" in the name stands for "with bore hole," indicating that these tools are specially designed to work with screws that have a safety pin in the center.

One of the standout features of the Wera Tools 840/4 Z Hex-Plus BO Series is its Hex-Plus technology, which allows socket head screws to live longer. This technology provides better contact between the screw and the tool, reducing wear and tear on both the screw and the tool. As a result, this series is a highly durable and reliable choice for professionals who work with hard materials.

The 1/4" hexagon drive (Wera connecting series 4) ensures easy compatibility with other tools and accessories, providing versatility and practicality for a range of applications.

Overall, the Wera Tools 840/4 Z Hex-Plus BO Series is an excellent choice for professionals who demand high quality and reliability from their tools. With its innovative design, durable construction, and easy compatibility with other tools, this series is sure to be a valuable addition to any toolkit. Whether you're working with hard materials or specialized screws with safety pins, the Wera Tools 840/4 Z Hex-Plus BO Series is a tool you can trust.

• For hexagon socket screws with safety pin (BO = with bore hole)
• Hex-Plus allows socket head screws to live longer
• Tough for hard materials
• 1/4" hexagon drive (Wera connecting series 4)

For hexagon socket screws with safety pin.

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-absorbing Wera bits (Z) prevent any premature breakage of the drive tip.