Drill bit Proline 71840 — metal, Ø18 mm, length 400 mm, 1 pc

Drill bit Proline 71840 is a single solid drill bit designed specifically for metalworking applications. With an 18 mm diameter and a total length of 400 mm, this Proline drill bit is intended for drilling holes in metal sheets and structural components where deeper or larger-diameter metal drilling is required. Supplied as one piece, it is suitable for workshop, maintenance and construction tasks that demand extended reach into metal workpieces.

Advantages

The Proline 71840 drill bit features a solid construction that ensures stability during drilling and reduces the risk of breakage when cutting through metal. Its geometry is optimised for metal cutting to provide efficient chip evacuation and maintain a consistent hole diameter over the full length. The extended 400 mm length allows access to recessed or deep drilling positions without the need for extensions, and the single-piece design simplifies handling and mounting.

Suitable for

• Drilling holes in metal sheets and plates
• Creating openings in structural metal components
• Maintenance and repair tasks requiring deep metal penetration
• Workshop and on-site construction drilling where extended reach is needed

Key specifications

• Material application: metalworking
• Diameter: 18 mm
• Overall length: 400 mm
• Package quantity: 1 piece

How to use

Select an appropriate drill holder or chuck compatible with the 18 mm shank and securely mount the Proline 71840 drill bit. Use suitable cutting speeds and feed rates for the specific metal type being drilled, apply steady pressure, and allow the drill bit to cut without side loading. Use cutting fluid or lubricant as recommended for the metal to reduce heat and improve chip removal. Clear chips regularly and inspect the drill bit for wear during extended operations.

Usage recommendations

For best results when drilling metal, use a rigid drill press or secure clamping to minimise runout and vibration. Apply cutting fluid appropriate to the metal being worked and moderate feed to avoid overheating; inspect the bit after prolonged use and replace if signs of wear or chipping appear.