Drill bit set MODECO MN-60-931 HSS for metal, cylindrical shank, sizes 2–8 mm (2, 4, 5, 3, 6, 8 mm)

Set of MODECO MN-60-931 high-speed steel (HSS) drill bits designed for drilling metal. The kit includes cylindrical-shank bits in sizes 2, 3, 4, 5, 6 and 8 mm, covering common hole diameters used in fabrication, maintenance and repair. HSS construction provides wear resistance and better heat tolerance compared with standard carbon bits, making the set suitable for drilling through a range of ferrous and non-ferrous metals when used with appropriate speeds and cutting fluids. The cylindrical shanks are compatible with hand drills and drill presses that accept straight shank bits.

Advantages

The HSS material offers improved hardness and thermal stability during continuous drilling operations, reducing premature dulling and chipping. Cylindrical shanks ensure secure clamping in chucks and simplify bit changes. The included sizes provide flexibility for common workshop and field tasks without needing single-piece purchases. The bits are suitable for both manual and machine use under recommended feed and speed conditions.

Suitable for

• Drilling holes in steel, stainless steel, aluminum and other metals
• Workshop fabrication and metalworking tasks
• Maintenance, repair and installation projects
• Use with portable hand drills and bench drill presses

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical / straight shank
• Included diameters: 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm
• Intended material: metals (ferrous and non-ferrous)
• Compatibility: standard drill chucks that accept straight shank bits

How to use

Select the drill bit of the required diameter and securely clamp its cylindrical shank in the drill chuck. Choose an appropriate spindle speed for the metal being drilled—lower speeds for harder, thicker steels and higher speeds for softer metals such as aluminum. Apply steady, even pressure and avoid excessive feed that can overheat the bit. Use cutting fluid or lubricant when drilling harder metals or for prolonged drilling to reduce friction and heat. Withdraw the bit periodically to clear chips and allow cooling when drilling deep holes.

Usage recommendations

For best results, match drill speed and feed to the material, use cutting fluid for steel and stainless steel, and secure the workpiece to prevent movement. Replace worn or chipped bits to maintain hole quality and reduce risk of breakage.