Drill bit Proline 71680 — metal, Ø 16 mm, length 800 mm, 1 pc

Proline 71680 is a single metal drill bit with a 16 mm diameter and an overall length of 800 mm, intended for drilling through metal. The solid construction is suitable for use in both hand-held drills and machine-mounted setups where extended reach is required. Supplied as one piece, this drill bit is designed to create deep or through holes in metal components in construction and metalworking environments.

Advantages

The drill bit features a double twist design and a 4-blade insert with optimised geometry to support effective cutting and chip evacuation when working with metal. Its long 800 mm length provides extended reach for deeper holes or access in confined assemblies, while the 16 mm diameter offers a balance between hole size and material removal rate. The single-piece design ensures rigidity appropriate for industrial and professional applications.

Suitable for

• Drilling deep or through holes in metal sheets, plates, and structural components
• Use with hand-held electric drills and drill presses where long reach is needed
• Maintenance, repair and fabrication tasks in workshops and construction sites

Key specifications

• Material type: metal drill bit (solid)
• Diameter: 16 mm
• Overall length: 800 mm
• Pack quantity: 1 piece
• Tip and flute design: double twist with 4-blade insert and optimised geometry

How to use

Secure the drill bit in the chuck appropriate to the drill’s capacity, ensuring proper clamping and alignment. Select a suitable drilling speed and apply steady feed pressure; use cutting lubricant or coolant where recommended for the metal being processed to reduce heat and extend tool life. For deep holes, periodically withdraw the bit to clear chips and prevent clogging. Follow the drill and machine manufacturer’s safety and operational instructions when mounting and using the bit.

Usage recommendations

For best results when drilling metal, use correct cutting speeds and appropriate lubricant, clamp workpieces securely, and verify that the drill and chuck can safely accommodate an 800 mm long bit. Inspect the bit regularly for wear before use and replace if cutting performance declines.