Drill bit for metal Forsage 5.2 mm HSS-Co, set of 2

High-speed steel with cobalt (HSS-Co) drill bit, 5.2 mm diameter, sold as a set of 2. The Forsage 5.2 mm metal drill bit is designed for cutting holes in ferrous and non-ferrous metals and provides a balance between rigidity and cutting clearance for medium-sized holes used in assembly, fabrication and maintenance. The cobalt alloy improves heat resistance and prolongs cutting life when working with harder steels and alloyed materials. The set of two identical bits allows for a spare on hand or successive drilling without immediate resharpening.

Advantages

The HSS-Co composition increases hardness and hot hardness compared with standard high-speed steel, reducing wear and maintaining cutting geometry at elevated temperatures. A ground tip geometry ensures accurate centring and consistent contact with the workpiece, while the 5.2 mm diameter is suitable for many common threaded-hole clearances and through-holes. Supplied as a matched pair, the set reduces downtime by providing an immediate replacement and supports both handheld drills and drill press operation.

Suitable for

• Drilling through mild steel, stainless steel, and alloyed metals
• Creating clearance or pilot holes for bolt and rivet assemblies
• Workshop maintenance and repair tasks
• Use with handheld electric drills and stationary drill presses

Key specifications

• Material: high-speed steel with cobalt (HSS-Co)
• Nominal diameter: 5.2 mm
• Quantity: set of 2 identical bits
• Intended use: drilling ferrous and non-ferrous metals
• Shank type: straight cylindrical shank (suitable for standard drill chucks)

How to use

Mark and centre the drilling position and secure the workpiece to prevent rotation. Use an appropriate cutting fluid or lubricant when drilling steel or stainless materials to reduce heat and improve tool life. Start at a low speed to establish the hole, then increase speed within recommended ranges for the material while maintaining consistent pressure. Replace the bit with the second unit from the set when wear affects cutting performance or accuracy.

Usage recommendations

Use moderate feed and proper cooling when drilling hardened or alloyed steels. For long-lasting performance, avoid excessive axial force and maintain sharp cutting edges by regrinding when necessary. Store the bits dry and protected to prevent corrosion and damage to the tip geometry.