Bosch HSS-Co Cobalt Drill Bit Set 19-Piece Metal Case

This Bosch HSS-Co Cobalt drill bit set delivers professional-grade performance for drilling in metal. The 19-piece set includes sizes from 1.0 mm to 10.0 mm, housed in a durable metal case for storage and transport. Each bit is made from high-speed steel with 5% cobalt, providing excellent heat resistance and durability for extended tool life. The 135° split point ensures self-centering and reduces walking, making drilling more accurate and efficient. Conforms to DIN 338 standard with h8 tolerance.

Advantages

High-performance HSS-Co material with 5% cobalt content for superior heat resistance and durability. Self-centering split point reduces walking and eliminates the need for pilot holes. Cylindrical shank fits all standard drill chucks. Ground from solid metal for precise cutting geometry.

Suitable for

• Alloyed and unalloyed steel
• Stainless steel
• Cast iron
• Acid and heat-resistant steels
• Non-ferrous metals

Key specifications

• Drill bit material: HSS-Co (High-Speed Steel with Cobalt)
• Cobalt content: 5%
• Drill bit type: Twist drill bit
• Standard: DIN 338
• Shank type: Cylindrical
• Point angle: 135°
• Tip type: Split point (self-centering)
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Manufacturing process: Ground from solid metal
• Set contents: 19 pieces
• Sizes: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 mm
• Packaging: Metal case

Recommendations

For best results, use with corded or cordless drills/drivers and drill presses. Apply cutting oil when drilling stainless steel or other hard materials to extend bit life.