Twist Drill Bits Bosch 2608596810 HSS Long Ground 5-10mm

Long HSS Twist Drill Bits Bosch 2608596810 are precision ground high-speed steel (HSS) drill bits with an extended length for drilling deep holes in metal and other materials. Manufactured to DIN 340 and featuring a cylindrical shank equal to the drill diameter, these bits are Type N (standard flute angle) with a 135° self-centring split-point tip that reduces wandering and often removes the need for pre-punching or pilot holes for diameters up to 10 mm.

Advantages

The precision-ground HSS construction provides up to 40% faster drilling and up to 50% lower feed pressure compared with standard-ground HSS bits with chisel edges. The 135° split-point tip ensures accurate centring and active cutting, reducing walking on the surface. The extended length permits deep-hole drilling while the cylindrical shank makes these bits suitable for use in drill stands and handheld drill drivers. Manufactured to recognized DIN 340 dimensions for consistent fit and performance.

Suitable for

Key specifications

How to use

Secure the bit in a suitable drill driver or drill stand using the cylindrical shank. Select appropriate cutting speed and feed for the material being drilled (lower speeds for harder steels, higher speeds for non-ferrous metals and plastics). Start drilling with light pressure until the split-point tip has engaged the surface, then increase feed as appropriate. For holes up to 10 mm the split-point often eliminates the need for a centre punch or pilot hole; for larger diameters or very hard surfaces consider pilot drilling or using a centre punch to ensure accuracy. Periodically withdraw the bit to clear chips and reduce heat buildup.

Recommendations

Use cutting fluid when drilling steels and other hard metals to extend bit life and improve finish. Replace bits that show excessive wear, chipping, or loss of the split point to maintain hole quality and safety.