Drill bit Proline 70826, metal, Ø 8 mm, length 260 mm, 1 pc

Proline 70826 metal drill bit is a single-piece twist drill with an 8 mm diameter and a total length of 260 mm. Manufactured for drilling metal and similar hard materials, this drill bit is compatible with handheld drills and drill presses. The tool is intended for creating through-holes, workshop repairs and metal fabrication tasks that require a standard 8 mm hole. The geometry and construction of the bit are designed to ensure effective chip evacuation and sustained cutting performance in industrial and professional applications.

Advantages

The drill bit features a double-twist flute design that supports rapid chip removal and consistent drilling speed. An optimised 4-blade insert geometry improves cutting efficiency and stability when penetrating hard materials. Its single-piece construction provides strength and reduces the risk of breakage under typical workshop loads. The 260 mm overall length gives extended reach for deeper through-holes while maintaining compatibility with common drill chucks.

Suitable for

• Drilling through metal sheets, plates and structural components
• Workshop repairs and maintenance tasks requiring 8 mm holes
• Metal fabrication and assembly operations
• Use with handheld drills and drill presses for general-purpose metal drilling

Key specifications

• Diameter: 8 mm
• Overall length: 260 mm
• Material application: metal and similar hard materials
• Design: single-piece twist drill with double-twist flute
• Cutting geometry: 4-blade insert with optimised geometry
• Intended use: through-hole drilling

How to use

Secure the workpiece and clamp it to prevent movement. Fit the drill bit into a compatible chuck and ensure it is tightened firmly. For best results when drilling metal, use steady pressure, appropriate rotational speed for an 8 mm bit in metal, and apply cutting fluid or coolant to reduce heat and extend tool life. Begin with a pilot mark or centre punch to keep the bit from wandering, then drill through the material in steady, controlled passes until the through-hole is complete.

Usage recommendations

Use appropriate personal protective equipment, such as eye protection and gloves. Match drilling speed and feed to the material being worked and use cutting fluid when drilling metals to improve performance and prolong bit life. Inspect the bit before use for wear or damage and replace when edges become dull or the flutes are clogged.