Wiha Hex insert bits are precision-machined in Germany to 61 HRC hardness, providing extended service life on both hand and power tool applications. The 5/16" hex shank fits standard impact drivers, drill-drivers, and bit holders. Manufactured to Wiha's exacting geometry standards, these bits seat fully in the fastener recess — reducing cam-out and preserving fastener head condition.Where this tool is used Construction and fit-out — power-driving plasterboard, framing, and decking fasteners at speed with a drill-driver or impact wrench. Industrial assembly and production lines — repetitive fastening on jigs, panels, and components where bit life and consistent engagement are critical. Automotive and mechanical workshops — driving fasteners on body panels, trim, and under-bonnet components using a 1/4" impact driver or ratchet. Key specifications Drive profile Hex Shank 5/16" hex (E6.3) Hardness 61 HRC Torsion zone N/A Compatible with 1/4" impact drivers, drill-drivers, bit holders, ratchet screwdrivers Origin Germany Selecting the right optionMatch drive profile and size precisely to the fastener. Replace bits showing tip wear — a worn bit damages fasteners and is a safety risk on power tools.Why Wiha?Wiha has manufactured precision hand tools in Schonach, Germany since 1939. Every tool is produced in-house — steel selection, forging, heat treatment, tip grinding, and handle moulding — under one roof. That vertical integration is why Wiha can guarantee precise geometry, consistent hardness, and handle-to-blade balance that you can feel after a full shift. AIMS Industrial is your Australian source for the full Wiha range, with same-day despatch from Sydney and expert advice on tool selection for your application.
