Chicago-Latrobe 52478 118 Degree Silver & Deming Drill Bit 1 7/32 in pneumatic accessory

Industrial Drill Bit 52478

The Chicago-Latrobe 52478 is a Silver & Deming drill bit with a 1 7/32 inch diameter and a 118 degree point angle. It is designed for general-purpose drilling in metal using a power drill or pneumatic tool. The reduced 1/2 inch shank allows compatibility with standard chucks. This accessory targets maintenance technicians and metal fabrication shops needing a large-hole cutter.

High-Speed Steel Black Oxide Finish

The bit is manufactured from machining high-speed steel with a black oxide finish for corrosion resistance and reduced friction. The 118 degree point angle provides a conventional cutting profile suitable for a wide range of ferrous and non-ferrous materials. The reduced shank design ensures the bit seats securely in a 1/2 inch chuck without requiring a specialised large-capacity holder. The construction supports repeated sharpening.

Upgrading From Smaller Twist Drills

This bit replaces the need for step drilling or hole saws when creating a single 1 7/32 inch hole in sheet metal or plate. The jump is worth it when a clean, accurate hole is required at this specific diameter and the workpiece material suits high-speed steel. It is not for buyers who need carbide-tipped performance in hardened steel or abrasive composites, nor for those requiring a full set of incremental sizes.