Description
SUTTON TOOLS® HD-COBALT Jobber Drill Bits 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
Includes
- 21 x HD-COBALT Jobber Drill Bits (1/16″ – 3/8″ in 1/64″ increments)
- Plastic Index Case










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