170-piece HSS-Co drill set from Labor. Made of alloyed high-speed steel with 5% cobalt, fully ground and 135° split point. Ideal for stainless and hard-to-machine steels. Cylindrical shank. Read more.
The Labor HSS-Co drill bit set contains 170 premium-quality bits made from alloyed high-speed steel with 5% cobalt (M35). The added cobalt provides excellent heat resistance, making these bits ideal for stainless steel, high-alloy steels, and cast iron.
Each bit is fully ground and features a 135° split point, ensuring high precision, clean entry, and low-vibration self-centering. Use with cutting oil is recommended for extended tool life and optimal performance.
Features:
Material: HSS-Co (M35) with 5% cobalt
Fully ground for accuracy and durability
Point angle: 135° split point, self-centering
Shank: cylindrical (fits standard drill chucks)
Standard: DIN 338
Cutting oil recommended
Suitable for:
Stainless steel
High-alloy steels
Cast iron
Other hard-to-machine metals
Contents:
170 drill bits from 1 to 10 mm (in 0.5 mm steps, multiple per size)
Supplied in a robust metal storage case
