Drill bit for metal MODECO HSS cylindrical 3.5 mm set 10 pcs (MN-60-435)

Set of 10 MODECO HSS cylindrical drill bits with 3.5 mm diameter designed for drilling metal. These high-speed steel (HSS) bits are manufactured for cutting through steel and other ferrous materials in workshop, maintenance and fabrication environments. The cylindrical shank is compatible with standard drill chucks and portable drills, offering a compact selection for precision drilling tasks where repeatable hole quality and tool life are required.

Advantages

High-speed steel construction provides a balance of hardness and toughness for reliable cutting performance on metal. The cylindrical shank ensures stable clamping in standard chucks and easy interchangeability between hand drills and drill presses. Supplied as a set of 10, the bits allow work continuity and quick replacement during repetitive tasks. The 3.5 mm diameter is suited to small-diameter holes used in fabrication, assembly and repair operations.

Suitable for

• Drilling holes in mild and medium carbon steel
• Maintenance and repair tasks on metal components
• Precision fabrication and assembly requiring small-diameter holes
• Workshop use with portable drills and drill presses

Key specifications

• Material: High-speed steel (HSS)
• Diameter: 3.5 mm
• Shank type: Cylindrical
• Pack quantity: 10 pieces
• Intended materials: Steel and other ferrous metals

How to use

Mark the drilling position and clamp the workpiece securely to prevent movement. Install a 3.5 mm HSS bit in the drill chuck and tighten firmly. Use an appropriate drilling speed for the material—moderate to high speeds for thin sheet metal, lower speeds for thicker or harder steel—and apply steady, even feed pressure. Use cutting fluid or coolant when drilling thicker sections or harder alloys to reduce heat and prolong bit life. Retract occasionally to clear chips and maintain cutting efficiency.

Usage recommendations

Avoid excessive speed and aggressive feed rates on hardened steels; for best results, pre-drill with progressively larger sizes when making larger-diameter holes or when tapping is required. Store the set in a dry place to prevent corrosion and rotate bits within the set to ensure even wear during repeated jobs.