Drill bit Proline 71660, metal, Ø16 mm, length 600 mm, 1 pc

Proline 71660 is a solid metal drill bit with a 16 mm diameter and a 600 mm overall length, supplied as a single piece. Designed for drilling metalwork where extended reach is required, this drill bit is compatible with hand-held drills and drill presses for through-holes, metal fabrication and repair tasks. The product is intended for industrial and professional applications and offers a long-reach solution for access into deep or awkward locations.

Advantages

The Proline 71660 drill bit features a double-twist flute design and a 4-blade insert geometry that supports efficient chip evacuation and stable drilling in metal. Its extended 600 mm length provides the reach needed for deep holes while the 16 mm diameter maintains rigidity for accurate drilling. Supplied as a single, solid piece, the bit is suitable for straightforward installation in standard chucks and for use in both hand-held drills and drill presses.

Suitable for

• Drilling through-holes in steel and other metals
• Metal fabrication and repair work requiring extended reach
• Accessing deep or recessed drilling points
• Use with hand-held drills and drill presses

Key specifications

• Diameter: 16 mm
• Overall length: 600 mm
• Material application: metal
• Design: solid single-piece construction
• Flute type: double-twist
• Insert/point geometry: 4-blade optimized geometry for chip control

How to use

Mount the Proline 71660 drill bit securely in a compatible drill chuck, ensuring concentric alignment and firm clamping. Select an appropriate cutting speed and feed for the specific metal being drilled, and apply steady, moderate pressure to avoid bending the long shank. Use cutting fluid or coolant where appropriate to reduce heat and improve chip removal. For deep holes, periodically withdraw the bit to clear chips and maintain cutting efficiency.

Usage recommendations

For best results when drilling metal with an extended-length bit, use a rigid drill setup or drill press where possible, maintain correct spindle speed and apply cutting fluid. Inspect the bit regularly for wear and replace it when cutting performance degrades to avoid damage to workpieces or the tool.