Drill bit Dedra WIT03570 — 3.5 mm diameter, 70 mm length, for metal

Single Dedra WIT03570 twist drill bit with a 3.5 mm cutting diameter and a 70 mm overall length, designed for drilling metal. This 3.5 mm drill bit is intended for use in handheld drills and drill presses and provides a precise, repeatable hole size for a variety of metalworking, repair and installation tasks. Supplied as one piece, it is suitable for general-purpose metal drilling where accurate hole diameter and clean chip removal are required.

Advantages

The Dedra WIT03570 drill bit offers a defined 3.5 mm diameter and 70 mm length to match common metalworking requirements. Its twist-flute geometry supports efficient chip evacuation when cutting metal, helping to maintain cutting performance and hole quality. Supplied individually, the single-piece format makes it easy to store, replace and select the exact size needed for a specific job. The bit is compatible with standard drill chucks used in hand drills and drill presses.

Suitable for

• Drilling holes in steel, sheet metal and other ferrous and non-ferrous metals
• Maintenance, repair and installation of metal components
• Preparation of mounting holes for fasteners and rivets
• Use with handheld electric drills and bench drill presses

Key specifications

• Cutting diameter: 3.5 mm
• Overall length: 70 mm
• Material compatibility: metal
• Pack quantity: 1 piece
• Geometry: twist/fluted design for chip removal

How to use

Secure the Dedra 3.5 mm drill bit in the drill chuck and tighten firmly. Mark the drilling location and, if necessary, use a center punch to prevent wandering. Select an appropriate drilling speed and cutting fluid based on the metal type to reduce heat and improve tool life. Apply steady pressure and allow the drill to cut without excessive force. After drilling, withdraw the bit while the spindle is still turning to clear chips, then stop the tool and inspect the hole.

Usage recommendations

For best results when drilling metal, use moderate speeds and light cutting oil with the 3.5 mm Dedra bit. Start with a pilot mark or pilot hole when working with thin sheets or hard alloys, and periodically clear chips to avoid overheating. Replace the bit when wear or chipping affects hole quality.