Chemical resistance: Resists oil

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Nutdriver (395 series) — Wera part 05028230001

The manufacturer's description indicates that the cutters are without bevelling to achieve smoother cuts in plastic parts

The application is thus geared towards fitting and turning hexagon screws

1/4" unbracho bit 50 mm lang MIL2022101301 Chemical resistance: Resists oilBits for internal hexagon socket screws Tough Wera 840 4 Z bits are designed for working with internal hexagon (hex) screws. The product is designated by the manufacturer WERA as part of the 840 4 Z series and is intended for general universal use, with a particular focus on increased durability in difficult materials. What it does Tough Wera 840 4 Z bits transmit torque to internal hexagon screws using WERA's Hex Plus profile. The Hex Plus profile