Bosch HSS PointTeQ Twist Drill Bit 4.0 mm, Cylindrical Shank

The Bosch HSS PointTeQ Twist Drill Bit 4.0 mm with a cylindrical shank (2608577161) is a single-piece cutting tool designed for metalworking. It is made from High-Speed Steel (HSS) for the durability needed in demanding workshop tasks and is rated for drilling ferrous materials such as steel and grey cast iron. A specialised tip design lets the bit centre immediately on contact with the workpiece, preventing wandering and allowing accurate starting holes without prior surface preparation. The bit's elastic body absorbs operational stress, reducing the risk of failure under heavy loads.

Connecting the bit to power equipment is straightforward thanks to its standard cylindrical shank, which grips securely in conventional rotary drill and driver chucks. Running in standard right-hand rotation, the bit removes material consistently on metal surfaces. Its engineered flute geometry manages heat build-up and wear during continuous use, helping to maintain the cutting edges over time. These characteristics make it a practical choice for hardware installation and routine fabrication work.

• 4.0 mm drill bit diameter for precise holes in common metal hardware and fasteners.
• 43 mm working length, defining the maximum penetration depth into solid workpieces.
• 135° point angle for immediate centring without the need for initial punch marks.
• 4 mm cylindrical shank, compatible directly with standard rotary power tools.
• Black oxide flute finish to reduce wear and dissipate heat during use.