Drill bit for metal Irwin HSS straight shank 2.5 mm (10502483)

Irwin HSS drill bit for metal, straight (cylindrical) shank, 2.5 mm diameter. Manufactured from high-speed steel (HSS) to provide reliable hardness and wear resistance when drilling steel and other ferrous and non-ferrous metals. Designed for use with handheld electric drills and drill presses, this 2.5 mm metal drill produces precise, clean holes for metalworking, fabrication, maintenance and repair operations that require a small-diameter, durable cutting tool.

Advantages

The high-speed steel construction ensures good heat resistance and edge retention during through-drilling and spot drilling in metal. The straight shank allows secure clamping in standard drill chucks and adapters for use in a wide range of drilling machines. The 2.5 mm diameter delivers accurate hole sizes for pilot holes, fastening, and precision metalwork. The geometry of the cutting tip is optimized for cutting efficiency and chip evacuation in thin to medium-thickness metal sheets.

Suitable for

• Drilling small-diameter holes in steel and stainless steel
• Pilot holes for screws, rivets, and bolts in metal assemblies
• Precision metal fabrication and sheet metal work
• Maintenance, repair and replacement tasks on machinery and equipment
• Use in handheld drills and bench drill presses

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Straight (cylindrical) shank suitable for standard chucks
• Diameter: 2.5 mm
• Intended materials: Steel and other metals (ferrous and non-ferrous)
• Typical applications: Metal drilling, pilot hole creation, precision fabrication

How to use

Select an appropriate drill speed and feed for a 2.5 mm HSS bit when working with the target metal; lower speeds are generally recommended for harder steels and higher speeds for softer metals. Secure the workpiece with clamps or a vise to prevent movement. Fit the straight shank into the drill chuck and tighten securely. Apply steady, moderate pressure and keep the bit aligned perpendicular to the work surface. Use cutting fluid or coolant for improved tool life and chip evacuation when drilling thicker or harder metals. Retract the bit occasionally to clear chips and avoid overheating.

Usage recommendations

For best results, pre-mark or center-punch the drilling location to reduce wandering. Match drill speed and cutting lubricant to the specific metal being drilled. Replace the bit when wear or chipping reduces hole quality.