Makita D-09793 Metal Drill Bit HSS-G 8.5 x 117 mm

The Makita Metal Drill Bit D-09793 HSS-G 8.5 × 117 mm is a single cutting tool designed for drilling holes in metal and hard plastics. This ground high-speed steel bit suits workshop users who need a general-purpose metal drill for preparing parts for assembly. Its main uses include drilling into cast iron, aluminium, brass, and copper workpieces. Made from HSS-G, the bit cuts efficiently across these hard substrates without quickly losing its edge. Precision grinding during manufacture produces a polished finish that supports smooth material removal, giving consistent hole quality when working with non-ferrous metals and industrial plastics.

At the base of the tool, a standard cylindrical shank offers broad compatibility with rotary power tools. This shank shape mounts securely in conventional three-jaw chucks. A 118-degree point angle sits at the tip of the bit to start the cut. This tip geometry helps centre the drill on flat surfaces before the main flutes engage the workpiece. Deflection under load is reduced by keeping the tooling profile as short as the job requires. A rigid structure lets the bit deliver stable performance during high-friction operations.

• 8.5 mm cutting diameter for accurately sized holes to suit standard metric fixings.
• 117 mm total length for the reach needed in typical workshop drilling.
• 75 mm working length for deeper penetration while clearing metal chips effectively.
• 8.5 mm shank diameter matching the cutting head for balanced rotational stability.
• Rated for drilling into steel with a tensile strength of up to 900 N/mm².
• Supplied as a single bit, providing a dedicated replacement for specific metalworking tasks.