Drill bits set Dedra WMT04075 — 10 pieces, 4 mm diameter, 75 mm length, for metal

Dedra WMT04075 is a set of 10 drill bits with a 4 mm diameter and 75 mm overall length, designed specifically for drilling metal. The bits are supplied as identical pieces suitable for use in handheld drills and drill presses. The geometry and dimensions are intended to provide repeatable, precise holes in a variety of metallic materials encountered in metalworking, fabrication, repair and maintenance tasks.

Advantages

The set offers a consistent diameter across all ten bits, enabling straightforward replacement and uninterrupted workflow. Their 75 mm length provides adequate reach for through-holes and moderate-depth drilling while remaining compatible with common chucks. Designed for metal, the bits maintain cutting performance and hole accuracy when used at appropriate speeds and with correct backing and clamping. Packaging as a ten-piece pack simplifies inventory and project planning.

Suitable for

• Drilling holes in sheet metal and thin plates
• General metal fabrication and assembly
• Maintenance and repair tasks on machinery and equipment
• Use with handheld drills and drill presses for small to medium jobs

Key specifications

• Drill bit diameter: 4 mm
• Overall length: 75 mm
• Quantity in set: 10 pieces
• Intended material: metal

How to use

Secure the workpiece with appropriate clamps or a vice to prevent movement. Install a 4 mm bit into the drill chuck and tighten firmly. Select a drilling speed and feed suitable for the specific metal type; use lower speeds for harder alloys and higher speeds for softer metals within recommended ranges. Apply steady pressure and let the bit cut without forcing; withdraw periodically to clear swarf if drilling deep holes. Use cutting fluid or lubricant when required to reduce heat and extend bit life.

Usage recommendations

For accurate and long-lasting performance, pre-center holes with a punch when drilling sheet metal, use appropriate drill speeds and cooling for the metal being worked, and replace worn bits promptly. Ensure the drill chuck is tightened and the workpiece is securely clamped to minimize runout and improve hole quality.