Drill Bit MODECO HSS straight shank 4.2 mm set of 10 (MN-60-242)

Set of 10 MODECO HSS drill bits with straight (cylindrical) shank, 4.2 mm diameter, intended for general metalworking and related materials. These high-speed steel (HSS) bits provide improved wear resistance and higher heat tolerance compared with carbon steel bits, making them suitable for routine drilling tasks in workshops, maintenance and repair operations. The straight shank design fits standard drill chucks and is compatible with handheld drills and drill presses.

Advantages

The HSS material delivers consistent performance when drilling into steel, non-ferrous metals and similar materials, resisting dulling at elevated temperatures. The 4.2 mm diameter and precise tip geometry enable accurate hole placement and repeatable results across multiple workpieces. Supplied as a set of 10, these bits offer convenient replacement and reduce downtime during production or repair tasks. The straight shank ensures solid clamping in standard chucks and easy interchangeability.

Suitable for

• Drilling holes in steel, aluminum and other non-ferrous metals
• Workshop fabrication and metalworking tasks
• Maintenance and repair operations
• Use with hand drills and drill presses
• Preparing holes for tapping or fastening

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Straight (cylindrical) shank
• Diameter: 4.2 mm
• Pack quantity: 10 pieces
• Typical applications: Metal drilling, workshop and maintenance use

How to use

Select the correct drill speed for the material being drilled and secure the workpiece to prevent movement. Mount the 4.2 mm HSS drill bit firmly in the drill chuck, ensuring concentric alignment. Apply steady pressure and moderate feed; allow the bit to cool intermittently when drilling harder metals or deeper holes. For best results when drilling thicker or harder materials, use cutting fluid to reduce heat and extend tool life. After use, clean chips from the flutes and store the bits in a protective case to prevent damage.

Usage recommendations

For prolonged bit life and consistent hole quality, use appropriate cutting speeds and cooling for the material, avoid excessive side load, and replace bits showing wear or chipping. These HSS 4.2 mm bits are intended for metal and similar materials; do not use them on masonry or reinforced concrete.