Sutton Tools Heavy Duty Cobalt jobber drills are industrial quality for drilling materials that have high hardness and tensile strength such as cast iron, bronze, hardened steel & stainless steel. These drill bits feature a thick core for increased rigidity in hard materials.
Features

135° Split Point (>2mm & >3/32") - Enables accurate positioning and less drilling pressure
Thick core - For increased rigidity in hard materials
Precision Engineered Parallel Shank - For accurate hole size
Made from HSS-Co (Cobalt) - The 5% cobalt formula improves abrasive & heat resistance, for increased strength at higher cutting temperatures
Colour Tempered Surface Finish - Enables identification of cobalt tool material

Specifications

Diameter: 1/4"
Length (Overall): 101mm
Flute Length: 63mm