Bosch HSS-G Twist Drill Bit DIN 338 11 x 142 mm

The Bosch HSS-G Twist Drill Bit, DIN 338, 11 mm × 142 mm, is a single-piece twist drill bit made from high-speed steel for demanding metalworking applications. It is designed for boring precise holes into rigid metallic substrates in professional or workshop settings. Built to withstand high thermal and mechanical stress, the bit holds its shape during continuous drilling operations. The HSS-G ground geometry helps start cuts on smooth surfaces by providing reliable guidance from the outset. Clean material removal supports accurate results when machining parts or preparing components for assembly, and the bit design minimises wandering on challenging metal workpieces.

The drill bit integrates with existing workshop equipment via a standard cylindrical shank that fits directly into conventional drill chuck jaws, giving a secure grip that resists slipping under rotational load. Operators can use it for tasks requiring a defined bore size for hardware fitting, rather than relying on a multi-step bit. It performs well in standard rotary drilling modes, cutting cleanly through workpieces without hammer action. Its profile is tailored to maintain consistent material removal across a range of component thicknesses, making it a practical choice for repairing machinery or installing new structural fixtures.

• 11 mm cutting diameter provides a specific bore size for matching metric bolts or hardware installations in metal components.
• 142 mm overall length offers sufficient reach to access recessed drilling points or pass through standard brackets.
• 94 mm working length dictates the maximum usable penetration depth achievable in a single pass.
• Compatibility with cast iron, cast steel, and non-alloyed steel covers the most common solid metalworking substrates.
• Ratings for pipe, profile, and thin stainless steel sheet allow for specialised fabrication and structural repair tasks.
• DIN 338 compliance ensures the tool meets strict standardised specifications for dimensions and geometric tolerances.