Drill Bit Proedge HSS-G 18.0 mm for metal, 1 pc, brand Proedge by Milwaukee (MPN 4932500409)

The Proedge HSS-G 18.0 mm metal drill bit is a single solid high-speed steel cutting tool designed for creating precise round holes in steel and other ferrous materials. Engineered for general-purpose metal drilling, this 18.0 mm diameter bit provides reliable cutting performance and heat resistance suitable for workshop, construction and maintenance environments. The bit is intended for use with compatible drill chucks and drilling machines where durable, repeatable metal drilling is required.

Advantages

The HSS-G construction delivers a balance of hardness and toughness that supports sustained cutting at moderate speeds and improves resistance to heat buildup. As a single-piece 18.0 mm bit, it offers consistent hole diameter and concentricity for accurate fits. Its geometry is optimised for chip evacuation and stable penetration in ferrous materials, reducing the need for frequent sharpening when used under appropriate conditions.

Suitable for

• Drilling holes in steel sheets and plates
• Preparing mounting and fastening holes in metal structures
• Workshop repairs and maintenance tasks on ferrous components
• Construction and installation work requiring metal penetrations

Key specifications

• Material: high-speed steel (HSS-G)
• Diameter: 18.0 mm
• Intended material: steel and other ferrous metals
• Quantity: 1 piece

How to use

Secure the Proedge HSS-G 18.0 mm drill bit in a suitable drill chuck, ensuring proper clamping to minimise runout. Select an appropriate cutting speed and feed for the thickness and grade of the ferrous material; use lower speeds and steady feed for harder steels. Apply cutting fluid or lubricant for improved heat control and chip evacuation, especially when drilling thicker sections. Start with a pilot hole if high positional accuracy is required, and use light, steady pressure to avoid bit wandering. After use, clean chips from the flutes and store the bit in a dry place to prevent corrosion.

Usage recommendations

For extended tool life, use recommended cutting speeds for HSS-G in ferrous materials, maintain proper lubrication, and avoid excessive pressure or overheating. Inspect the bit for wear before precision drilling and resharpen or replace when cutting performance declines.