Drill bit EPM HSS cylindrical 4 mm model E-500-1040 for metal

The EPM HSS cylindrical drill bit 4 mm model E-500-1040 is a high-speed steel cutting tool intended for drilling metal. With a 4 mm diameter and straight shank, the bit is suitable for through-holes and pilot holes in steel, aluminum and other ferrous and non-ferrous metals. The HSS material provides elevated wear resistance and maintains hardness at higher temperatures commonly encountered during metalworking operations. The design is compatible with hand-held drills and drill presses used in fabrication, repair and maintenance environments.

Advantages

This 4 mm HSS drill bit offers consistent cutting performance on a range of metals thanks to its high-speed steel composition, which combines toughness and heat resistance. The cylindrical (straight) shank ensures secure clamping in standard drill chucks and simple interchangeability between machines. The geometry is optimized for creating clean through-holes and pilot holes with reduced risk of workpiece damage when used with appropriate speeds and lubrication.

Suitable for

• Drilling through-holes and pilot holes in steel and stainless steel
• Machining aluminum and other non-ferrous metals
• General fabrication, maintenance and repair tasks
• Use in hand drills and drill presses for workshop and industrial applications

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 4 mm
• Shank type: cylindrical (straight) shank
• Intended material: ferrous and non-ferrous metals
• Typical applications: through-holes and pilot holes

How to use

Secure the drill bit in the chuck so the shank is firmly clamped. Select an appropriate spindle speed for the workpiece material—lower speeds for harder steels, higher speeds for softer non-ferrous metals. Apply steady feed pressure and keep the bit perpendicular to the work surface for accurate holes. Use cutting fluid or lubricant when drilling steel to reduce heat buildup and extend tool life. Remove chips frequently to prevent clogging and overheating.

Usage recommendations

For best results, match drill speed and feed to the specific metal being worked on and use cutting fluid for drilling stainless steel or other hard alloys. Inspect the bit for wear or chipping before use and replace if cutting performance declines. When drilling multiple holes, allow the bit to cool periodically to maintain hardness and extend service life.