Wera - 840/4 Z Tamper-Proof Hex-Plus with Bore Hole Bits

Product description

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 unauthorised loosening since the "normal" hex tools cannot move these screws. ¼" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

• 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 

Product features

• Hex-Plus

With safety pin

For hexagon socket screws with safety pin.

Hex-Plus

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 bits

Tough Wera bits prevent the tip from breaking prematurely. Z-bits usually are the bit for universal screwdriving applications.

Specifications 

Part number
	Tip size (metric)	Blade length	Blade length	Blade diameter
	mm	mm	inch	mm
05059640001	2.0	89	3 1/2"	4.0
05059641001	2.5	89	3 1/2"	4.0
05059642001	3.0	89	3 1/2"	4.0
05059643001	4.0	89	3 1/2"	5.0
05059644001	5.0	89	3 1/2"	6.0
05059645001	6.0	89	3 1/2"	-