Drill bit Proline 70845 — metal 8 mm, length 450 mm, 1 pc

Single Proline 70845 metal drill bit with an 8 mm diameter and 450 mm overall length. This long-shank straight drill bit is designed for drilling metal and for use with drills that accept extended-length bits. Supplied as a single piece, it is suitable for workshop work, maintenance tasks and on-site repair where deep-hole penetration in metal is required.

Advantages

The Proline 70845 drill bit offers a long 450 mm overall length that enables deeper drilling without changing tools. Its 8 mm diameter provides a balance between rigidity and penetration for general-purpose metalworking. The straight shank design ensures compatibility with standard chucks and secure fastening during operation. Constructed for metal drilling, the bit supports precise, consistent holes in a variety of ferrous and non-ferrous metals.

Suitable for

• Drilling deep holes in metal plates and profiles
• Workshop machining and repairs
• On-site maintenance and installation tasks
• Use with drills that accept long-shank bits

Key specifications

• Material application: metal
• Diameter: 8 mm
• Overall length: 450 mm
• Shank type: straight shank
• Quantity: 1 piece

How to use

Securely install the Proline 70845 drill bit in a compatible drill chuck, ensuring the straight shank is fully seated and tightened. Select an appropriate rotational speed for the metal type being drilled and apply steady feed pressure. Use cutting fluid or coolant when drilling to reduce heat, improve chip evacuation and extend tool life. After completing the hole, withdraw the bit while the drill is still rotating slowly to clear chips and prevent binding.

Usage recommendations

For best performance when drilling metal, use moderate speed and steady pressure, apply suitable cutting fluid, and verify drill chuck compatibility with the 450 mm long shank. Inspect the bit before use for any damage and replace if worn or chipped.