Drill bit set GRAPHITE HSS-Co metal 2.0 mm, 5 pcs (MPN 57H014)

GRAPHITE HSS-Co metal drill bits, 2.0 mm diameter, set of 5 pieces, are engineered for drilling small, precise holes in steel and other metals. Made from high-speed steel with a cobalt alloy (HSS-Co), these straight-shank bits deliver improved heat resistance and wear resistance compared with standard HSS. The 2.0 mm diameter and slim profile make the set suitable for detail metalworking, repair tasks and fitting operations where accuracy and edge retention are important. The straight shank design fits most handheld drills and drill presses for versatile workshop and job-site use.

Advantages

The HSS-Co material offers enhanced hardness and thermal stability for prolonged cutting performance when drilling through hard steels and alloyed materials. A 2.0 mm diameter provides a balance between precision and rigidity for small-diameter holes, while the straight shank ensures compatibility with common chucks without needing adapters. Supplied as a set of five, these bits allow repeated use or replacement during a project, reducing downtime. The geometry and material are designed to maintain sharpness longer under higher temperatures associated with metal drilling.

Suitable for

• Drilling small-diameter holes in carbon steel and alloy steel
• Precision metalworking and fitting tasks
• Maintenance, repair and installation of metal components
• Use with handheld electric drills and bench drill presses

Key specifications

• Material: high-speed steel with cobalt alloy (HSS-Co)
• Diameter: 2.0 mm
• Number of pieces: 5
• Shank type: straight shank
• Application: designed for drilling metals (including steel)

How to use

Select an appropriate drill speed and apply steady feed pressure to avoid bit breakage given the small 2.0 mm diameter. Secure the workpiece in a vise or clamp to prevent movement, and if drilling hard or thick metal, use cutting fluid or coolant to reduce heat and extend tool life. Start with a center punch to prevent walking, then drill using progressive, controlled strokes. Replace bits when wear or chipping reduces drilling accuracy or increases heat generation.

Usage recommendations

For best results when drilling steel and other hard metals, use cutting fluid and moderate speed, avoid excessive axial force, and store bits dry to prevent corrosion. For repeated or heavy-duty tasks, consider periodically re-sharpening or replacing small-diameter bits to maintain hole quality.