Drill bit Dedra WM04270, Ø4.2 mm, Length 75 mm, for metal, set of 2

Dedra WM04270 drill bit set consists of two straight-shank bits with a 4.2 mm diameter and a working length of 75 mm, designed specifically for drilling metal. These bits are made for use in handheld drills and drill presses and are intended for creating clean through-holes and pilot holes in steel, iron and other ferrous materials in workshop and maintenance environments.

Advantages

The set provides two identical bits so a spare is available during extended tasks or when working with harder metals. The straight shank ensures compatibility with a wide range of chucks on both cordless and corded drills as well as bench-mounted machines. The 4.2 mm size offers a balance between precision and material removal for common metalworking applications, while the 75 mm length allows drilling through thicker plates or reaching recessed points without loss of control.

Suitable for

• Creating through-holes and pilot holes in steel and iron
• Workshop maintenance and equipment repair
• Metal fabrication and assembly tasks
• Use with handheld drills and drill presses

Key specifications

• Drill diameter: 4.2 mm
• Overall/working length: 75 mm
• Material compatibility: metal (ferrous materials)
• Shank type: straight shank
• Quantity in set: 2 pieces

How to use

Secure the appropriate drill bit in the chuck so it is tightly clamped and concentric. Mark and center-punch the drilling point on the metal surface to reduce wandering. Begin drilling at low speed to establish the hole, apply steady feed pressure, and increase speed as appropriate for the material and drill bit. Use cutting fluid or lubricant when drilling harder steels to reduce heat and extend bit life. Retract occasionally to clear chips when drilling deep holes and finish by deburring the hole edges.

Usage recommendations

Use proper personal protective equipment including safety glasses and gloves, select the correct drill speed for the metal type, and apply cutting fluid for improved performance and bit longevity. Replace the bit when wear or chipping reduces drilling quality.