Drill bit Proline 58546 — single-piece metalworking drill bit

Proline 58546 — single-piece metalworking drill bit designed for standard drilling operations in metal and common workshop materials. Supplied as a single unit, this drill bit is compatible with most hand and bench drills that accept straight-shank twist bits. It is intended for repair, installation and maintenance tasks where a reliable, general-purpose metal drill bit is required.

Advantages

The Proline single-piece metalworking drill bit offers a straightforward design that simplifies selection and use. Its single-piece construction provides consistent alignment and reduced risk of bit separation. The geometry is optimized for general-purpose metal drilling, balancing cutting performance and durability. Supplied individually, it is convenient for replacing a worn or broken bit without purchasing a multi-pack.

Suitable for

• Drilling through mild steel and sheet metal
• General workshop and maintenance drilling tasks
• Home repairs and installations using hand or bench drills
• Pre-drilling for bolts, rivets and fasteners in metal components

Key specifications

• Type: single-piece twist drill bit for metalworking
• Shank style: straight shank compatible with standard chucks
• Construction: one-piece design for improved concentricity
• Intended materials: metal and common workshop materials (depending on drill and feed)
• Packaging: supplied as a single drill bit

How to use

Secure the drill bit in the drill chuck and tighten firmly to ensure concentric rotation. Select a drill speed appropriate for the material being drilled—lower speeds for harder metals and higher speeds for softer metals—and use cutting fluid when working with steel to reduce heat and wear. Apply steady axial feed pressure without forcing the bit; withdraw occasionally to clear chips and allow cooling. After drilling, deburr the hole as needed and inspect the bit for wear before reuse.

Usage recommendations

Use appropriate personal protective equipment, clamp the workpiece firmly, and follow the drill manufacturer's guidelines for speed and feed. Replace the bit when wear or chipping reduces cutting efficiency.