Twist drill bit Irwin 10502206 — 3 mm, 1 pc

Irwin twist drill bit model 10502206, single 3 mm drill bit designed for drilling applications. This high-speed twist drill is intended for use with hand drills and drill presses to produce round holes of 3 mm diameter. Supplied as one piece, it is suitable for general metalworking, wood and plastic drilling where a 3 mm hole is required.

Advantages

The Irwin 3 mm twist drill bit provides precise 3 mm holemaking with a cylindrical shank compatible with standard chucks. Its high-speed twist geometry ensures efficient chip removal and stable drilling in thin sheet metal, plastics and most woods. The single-piece supply is convenient for immediate use and replacement. When used with appropriate drilling speeds and clamping, the drill bit delivers consistent hole diameter and finish.

Suitable for

• Drilling 3 mm holes in metal sheets and light plate
• General wood drilling for dowels, pilot holes and joinery
• Plastic and acrylic drilling for fittings and assemblies
• Pilot holes for screws and fasteners in mixed-material work

Key specifications

• Drill type: high-speed twist drill
• Diameter: 3 mm
• Overall length: 61 mm
• Shank type: cylindrical shank compatible with standard chucks
• Suitable materials: metal, sheet metal, stainless steel (with coolant), wood, plastic
• Quantity: 1 piece

How to use

Mount the 3 mm Irwin twist drill bit securely in the drill chuck and tighten to prevent slippage. Select an appropriate spindle speed for the material: higher speeds for wood and plastic, and moderate speeds for metal and sheet metal. Use steady feed pressure and keep the drill aligned perpendicular to the work surface. For stainless steel or thicker metals, apply cutting fluid or coolant and reduce speed to avoid work hardening. After drilling, clear chips from the flutes before re-starting to maintain hole quality.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves) and secure the workpiece in a clamp or vise. For stainless steel, use coolant and lower speeds; for plastics, use moderate speed and avoid excessive heat to reduce melting. Replace the bit when wear or chipping affects hole accuracy.