Description
The Wera 840/4 Z Hex-Plus bit is a tool bit designed for internal hexagon screws (inner hex). The bit features a Hex-Plus profile, which provides larger contact surfaces between the bit tip and the screw, and the Z-variant is specified as extra-rigid/tough to reduce premature tip breakage. The product name in this text is Wera 840/4 Z Hex-Plus bit.
Function and construction
The bit is designed with a tip size of 5/64" (imperial) and a blade/total length of 50 mm. It has a 1/4" hexagonal drive, which is compatible with holders according to DIN ISO 1173‑F 6.3. The Hex-Plus profile and the Z-variant's extra rigidity are the central, verified properties that describe both the contact geometry and mechanical behavior of the bit tip.
Practical application
The Wera 840/4 Z Hex-Plus bit is used for assembling and disassembling internal hexagon screws where the specified tip size (5/64") is appropriate. The 1/4" drive end makes the bit usable with standard 1/4" bit holders and tools that accept the DIN ISO 1173‑F 6.3 interface.
- Product name: Wera 840/4 Z Hex-Plus bit.
- Tip size: 5/64".
- Length (blade/total): 50 mm.
- Drive: 1/4" hexagon, compatible with DIN ISO 1173‑F 6.3 holders.
- Profile: Hex-Plus.
- Variant: Z (extra-rigid/tough).
The Wera 840/4 Z Hex-Plus bit delivers the documented properties listed above and should be chosen when the exact tip size and drive compatibility match the tools and screw types used. The product is identified by the manufacturer's part number, which is stated in the documentation.
Specifications
- Prod. name: Wera 840/4 Z Hex-Plus bit.
- Manufacturer: WERA.
- Manufacturer's item number: 05135091001.
- Tip size: 5/64".
- Blade/total length: 50 mm.
- Drive: 1/4" hexagon (compatible with DIN ISO 1173‑F 6.3).
- Profile: Hex-Plus.
- Variant: Z (extra-rigid/tough).
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