Drill bit Proline 71845, metal, Ø 18 mm, length 450 mm, 1 pc

Proline 71845 metal drill bit, Ø 18 mm and length 450 mm, is a single long-reach twist drill intended for drilling metal with hand-held drills or drill presses. Supplied as one piece, this drill bit is designed to create deep or through-holes in metalwork and is suitable for maintenance, installation and industrial applications where a larger diameter and extended reach are required.

Advantages

The single Proline 71845 drill bit combines a 450 mm working length with an 18 mm diameter to permit drilling of deep metal parts without the need for extensions. Its twist-flute geometry supports continuous chip evacuation during drilling, while the robust construction provides the rigidity needed for professional use. Supplied as one piece, the tool is ready for immediate mounting in standard chucks of hand drills or drill presses.

Suitable for

• Drilling deep or through-holes in steel and non-ferrous metals
• Maintenance and installation tasks requiring long-reach holes
• Industrial and workshop applications with hand-held drills or drill presses

Key specifications

• Material application: metal
• Diameter: 18 mm
• Overall length: 450 mm
• Quantity: 1 piece
• Design: long-reach twist drill geometry for chip evacuation

How to use

Secure the Proline 71845 drill bit in an appropriate chuck, ensuring the shank is held firmly and runout is minimised. Select a suitable rotational speed for the metal being drilled and apply steady feed pressure; use cutting fluid or coolant where applicable to reduce heat and extend tool life. For deep holes, periodically withdraw the bit to clear chips and allow coolant to reach the cutting edge. Always follow the drill press or hand drill manufacturer's safety instructions when operating.

Usage recommendations

Use appropriate cutting speeds and coolant for the specific metal to prevent overheating. When drilling deep holes, peck-drill by withdrawing the bit at intervals to remove chips and avoid jamming. Inspect the bit for wear or damage before each use and replace when cutting performance declines.