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