Wera 840/0 4mm Hex Drive Hex Plus Micro Screwdriver Bits – 189578

The Wera 840/0 Hex Plus Micro Screwdriver Bit in 1.5mm is one of the most commonly specified sizes for precision hex socket screws, frequently encountered in engineering, electronics, and instrument work. The 30mm length makes it a versatile choice for both bench work and in-situ fastening tasks. Wera's Hex-Plus profile sets this bit apart from standard alternatives — the enlarged contact surfaces within the screw recess significantly reduce cam-out forces, helping to preserve screw heads and extend bit life, particularly when working repeatedly with the same fasteners. Built tough for use in hard materials as well as general applications, this bit is sold individually as a Pack of 1. Features and Benefits: • Hex-Plus profile reduces rounding-out and cam-out on hex socket screws • Notch effect minimised for greater durability in repeated use • Tough construction for hard materials and universal applications • 4mm hexagonal drive fits standard bit holders Contents: 840/0 Hex-Plus Micro bit for hexagonal socket head screws, 1.5 x 30mm Specifications: Hex Size: 1.5mm Length: 30mm Drive: 4mm Hexagonal Pack Quantity: 1