Bosch HSS-Co Cobalt Twist Drill Bit 13mm x 151mm - Pack of 5

Summary

The Bosch HSS-Co 13mm twist drill bit is a fully ground, cobalt-alloyed high-speed steel bit engineered for demanding metalwork applications. Supplied in a pack of five, it is the professional's choice for drilling stainless steel, hard alloy steels, cast iron, and other tough materials where standard HSS bits fall short. The 135-degree split-point tip and precision geometry deliver fast, clean holes with minimal feed pressure.

Features

• Manufactured from alloyed high-speed steel with 5% cobalt content, providing outstanding heat and wear resistance for extended service life.
• Fully ground construction to DIN 338 Type N ensures consistently precise hole dimensions and excellent surface finish.
• 135-degree self-centring split-point tip eliminates the need to pre-punch or pilot drill for holes up to 10mm diameter.
• Delivers up to 40% faster drilling rates and up to 50% lower feed pressure compared to standard chisel-edge HSS bits.
• Two cutters and two flutes provide rapid chip evacuation, reducing heat build-up and prolonging bit life.
• Cylindrical shank (diameter equal to bit diameter) is compatible with standard three-jaw drill chucks, drill stands, and pillar drills.
• Suitable for alloyed and non-alloyed steel, stainless steel (V2A/V4A), cast steel, cast iron, and acid- and heat-resistant steels.
• Diameter tolerance to h8 for accurate, repeatable results across all compatible materials.

Specifications

• Diameter: 13mm
• Overall Length: 151mm
• Material: HSS-Co (5% cobalt alloy high-speed steel)
• Standard: DIN 338, Type N
• Tip Angle: 135deg
• Shank: Cylindrical (13mm)
• Diameter Tolerance: h8
• Pack Quantity: 5

What's Included

• 5 x Bosch HSS-Co 13mm Twist Drill Bits (13 x 151mm)