Drill bit Proline 70416 — metal, Ø 4 mm, length 160 mm, 1 pc

Proline 70416 metal drill bit, Ø 4 mm and 160 mm overall length, is designed for drilling metal with extended reach. The single-piece straight shank bit fits standard hand drills and drill presses and is intended for creating precise through-holes and other metalworking operations in construction, maintenance and fabrication where a long-reach 4 mm hole is required.

Advantages

The Proline 70416 bit features a long 160 mm length that enables access to recessed or deep locations while maintaining a compact 4 mm diameter for minimal material removal. Its straight shank provides stable clamping in common drill chucks. The geometry combines effective cutting and chip evacuation suitable for many metal drilling tasks, supporting accurate and repeatable hole production.

Suitable for

• Drilling through metal sheets and plates where a 4 mm hole is required
• Reaching recessed or deep holes in assemblies and structural components
• Use with hand-held drills and drill presses in workshop or site environments

Key specifications

• Material application: metal
• Diameter: 4 mm
• Overall length: 160 mm
• Shank type: straight shank for standard drill chucks
• Pack quantity: 1 piece

How to use

Secure the drill bit in the drill chuck with sufficient clamping depth and ensure the workpiece is firmly fixed or clamped. Select an appropriate rotational speed for metal drilling—lower speeds for harder metals and higher speeds for softer metals—apply steady feed pressure and allow the bit to cut without excessive force. Use cutting fluid or lubricant when drilling steels to reduce heat and improve tool life. After drilling, retract the bit slowly to clear chips and inspect the hole for accuracy.

Usage recommendations

For best results when drilling metal, start with a pilot mark or center punch to prevent walking, use suitable cutting lubricant for the metal type, and avoid excessive speed or pressure that can cause premature wear. Regularly clear chips from the hole and replace the bit if signs of dulling or chipping appear.