Drill bit Proline 71030 — metal drilling, 10 mm diameter, 300 mm length, 1 pc

Single Proline drill bit model 71030 designed for metal drilling. This solid twist drill bit has a 10 mm diameter and a 300 mm overall length, supplied as one piece. It is suitable for through-holes and deep drilling in steel and other metal workpieces when used with compatible drill chucks and correct speeds. The product is intended for workshop and maintenance tasks in hand drills or drill presses.

Advantages

The Proline 71030 drill bit provides a long reach with its 300 mm overall length while retaining a standard 10 mm cutting diameter for common metalworking tasks. Its solid construction ensures rigidity during drilling operations and compatibility with conventional straight-shank chucks. Supplied as a single piece, the bit is convenient for targeted replacement or specific jobs requiring a long metal drill.

Suitable for

• Drilling through-holes in steel and other metals
• Deep drilling tasks where extended length is required
• Use with hand drills and drill presses (with appropriate chuck and speed)
• Workshop maintenance and repair operations involving metal components

Key specifications

• Diameter: 10 mm
• Overall length: 300 mm
• Quantity in pack: 1 piece
• Intended material: metals (steel and similar workpieces)
• Shank type: straight shank for common drill chucks

How to use

Secure the drill bit in a compatible drill chuck, making sure the shank is clamped firmly and the bit is concentric. Select an appropriate rotational speed and feed for the material being drilled — lower speeds for harder steels and higher speeds for softer metals. Use cutting lubricant when drilling steel to reduce heat and prolong tool life. Start drilling with a pilot or center punch where precise location is required, and apply steady, moderate pressure without forcing the bit.

Usage recommendations

For best results when drilling metal, use appropriate cutting fluid, maintain correct speeds and feeds, and periodically withdraw the bit to clear chips. Inspect the bit for wear or damage before use and replace when cutting performance declines.