Format Spiral Drill Bit HSS-Co Cylindrical 12.5mm

The Format Spiral Drill Bit HSS-Co Cylindrical 12.5mm is a high-performance cutting tool engineered for demanding drilling operations in metal and other hard materials. Manufactured from a premium high-speed steel cobalt alloy, this drill bit provides exceptional heat resistance and structural integrity during intensive use. It is specifically designed to maintain cutting efficiency under high thermal and mechanical stress, making it a dependable choice for professional workshops, manufacturing environments, and ongoing maintenance operations.

Advantages

The incorporation of cobalt in the HSS-Co alloy significantly increases the hardness and red hardness of the drill bit, allowing it to perform efficiently at elevated temperatures without losing its cutting edge. The cylindrical shank ensures secure and stable clamping in standard drill chucks and toolholders, minimizing slippage during operation. The precision-ground geometry facilitates accurate spot drilling and smooth chip evacuation, contributing to consistent hole quality and reduced tool wear over extended periods of use.

Suitable for

• Drilling high-tensile and alloyed steels
• Workshop and industrial manufacturing tasks
• Equipment maintenance and repair operations
• Processing hard metals requiring high thermal resistance

When it may not be suitable

This drill bit is not recommended for drilling soft materials such as wood, plastics, or non-ferrous metals where specialized geometry is required to prevent clogging or tearing. It is also unsuitable for handheld drilling applications on unstable workpieces where the rigidity of a drill press or machine tool is unavailable.

Key specifications

• Material: High-speed steel cobalt alloy (HSS-Co)
• Diameter: 12.5mm
• Shank type: Cylindrical
• Application: Metal and hard materials

How to use

Secure the workpiece firmly in a vice or clamping device to prevent movement during the drilling process. Insert the cylindrical shank of the 12.5mm drill bit securely into the drill chuck and ensure it is centered correctly. Align the drill perpendicular to the surface of the material and apply steady, controlled pressure while maintaining an appropriate rotational speed. Use cutting fluid or lubricant suitable for metal machining to reduce heat generation, improve surface finish, and extend the operational lifespan of the tool.

What to consider before purchase

• Verify that your drill chuck is compatible with a 12.5mm cylindrical shank.
• Ensure your drilling equipment can supply the appropriate torque and speed for hard metal applications.
• Assess whether the material you intend to drill matches the high-alloy metal capabilities of this HSS-Co bit.

Usage recommendations: Always wear appropriate personal protective equipment, including safety glasses and gloves, when operating drilling tools. Periodically clear chips from the hole during deep drilling to prevent binding and tool breakage.