Drill bit Dedra WK03570 — 3.5 mm diameter, 70 mm length, for metal, 1 pc

Dedra WK03570 is a single 3.5 mm diameter drill bit with a 70 mm overall length, designed specifically for drilling metal. Supplied as one piece, this solid metalworking bit is suitable for making small-diameter holes in steel and similar ferrous materials. The bit is shaped to fit standard drill chucks and is intended for workshop, repair and light industrial tasks where accurate, clean metal drilling is required.

Advantages

The 3.5 mm cutting diameter provides precise hole-sizing for fastening and pilot-hole applications, while the 70 mm length gives extra reach for through-holes or drilling into thicker components. Manufactured for metalworking, the bit’s geometry supports stable drilling and efficient chip removal when used at appropriate speeds. Supplied as a single piece, it is convenient for replacing worn bits or stocking common sizes for maintenance tasks.

Suitable for

• Drilling small holes in steel and other ferrous metals
• Creating pilot holes for screws and rivets
• Repair and maintenance work in workshops and light industry
• Hobby and craft metalworking projects requiring accurate small diameters

Key specifications

• Cutting diameter: 3.5 mm
• Overall length: 70 mm
• Intended material: metal (ferrous)
• Shank type: straight shank for standard drill chucks
• Quantity per pack: 1 piece

How to use

Secure the Dedra WK03570 drill bit in a compatible drill chuck and tighten firmly. Mark the drilling position on the workpiece and, if required, use a center punch to prevent wandering. Select an appropriate drilling speed for metal and apply steady, moderate feed pressure; use cutting fluid or lubricant for improved tool life and chip evacuation when drilling steel. Withdraw periodically to clear chips on deep holes and finish the hole with light passes for cleaner edges.

Usage recommendations

Use personal protective equipment such as safety glasses and gloves. Match drilling speed and lubrication to the specific metal type—lower speeds and cutting fluid are recommended for harder steels. Replace the bit when wear or dulling affects performance to maintain hole quality and reduce risk to the drill and workpiece.