BOSCH Ground High-Speed Steel Metal Twist Drill Bit 5 x 86 mm

The Bosch HSS-G Ground Metal Twist Drill Bit 5 × 86 mm is a single ground high-speed steel twist bit for metalworking. Its 5 mm working diameter is intended to produce a specific hole size rather than cover a range. It is rated for alloyed and unalloyed steel, cast iron and non-ferrous metals. Hard plastics are also listed among the suitable materials. The HSS-G construction refers to both the material and the grinding process used to make the bit. This specification suits professional work, maintenance tasks and demanding DIY drilling in the listed materials.

The cylindrical shank has the same 5 mm diameter as the working section. It requires a compatible power drill with a 5 mm chuck capacity. Overall length is 86 mm from the drill point to the end of the shank. The 52 mm working length defines the usable drilling section. The exterior has a bright finish.

• 135° point angle supports accurate starting on metal surfaces.
• Self-centring split point reduces wandering and can remove the need for centre punching or pilot drilling for holes up to 10 mm.
• Two cutting edges form the working geometry.
• Up to 40% faster drilling compared with standard drill bits.
• Up to 50% less feed force required compared with standard drill bits.