SUTTON TOOLS® D108-Series Heavy Duty Cobalt Jobber Drill Bits are an industrial quality drilling solution for drilling materials that have high hardness and tensile strength such as cast iron, bronze, hardened steel and stainless steel.
These bits feature a thick core for increased rigidity when drilling hard metals.
Features

135° Split Point - Enables accurate positioning and less drilling pressure
Thick Core - For increase rigidity in hard materials
Precision Engineered Parallel Shank - For accurate hole size
Made from HSS-Co - The 5% cobalt formula improves abrasive and heat resistance, for increased strength at higher cutting temperatures
Colour Tempered Surface Finish - Enables identification of cobalt tool material

Specifications

Diameter: 5.5 mm
Working Length: 57 mm
Overall Length: 93 mm
Point Angle: 135°
Helix Angle: R30
Point Tolerance: h8
Point Form: Form c
Material: HSS-Cobalt
Finish: Colour Temp