Cleveland C73475 Jobber Length Drill Bit Wire Size 47

Product Description

The CLEVELAND C73475 is a jobber-length twist drill bit in wire gauge size 47, with a decimal diameter of 0.0785 inches. Built from high-speed steel (HSS) with a bright, uncoated finish, it features a 118-degree split point and a web-thinned, tapered web configuration that reduces walking and cutting resistance at entry. The regular spiral flute evacuates chips efficiently along the 1-inch flute length. Overall length is 2 inches with a straight-cylindrical shank. This is a heavy-duty grade bit intended for production and maintenance use by machinists, pipefitters, electricians, and general trade professionals working with small-diameter holes.

The C73475 is rated for aluminum as its primary workpiece material, making it well suited for HVAC sheet metal work, electrical enclosure drilling, and light fabrication tasks where a precise small-diameter hole is required. The 118-degree split point and web-thinned geometry help maintain accuracy in thinner stock. The straight-cylindrical shank is compatible with standard keyless and keyed drill chucks. This bit is sold individually and meets NAS 907 Type A standards, which is relevant for aerospace-adjacent and precision maintenance applications.

Key Features

• Wire gauge size 47 — 0.0785 inch diameter for precise small-bore applications
• 118-degree split point with web-thinned, tapered web for reduced thrust and walking
• High-speed steel construction with bright, uncoated finish
• Regular right-hand spiral flute, 1 inch flute length, for efficient chip evacuation
• Meets NAS 907 Type A specification — heavy-duty grade
• 2-inch overall length with straight-cylindrical shank for standard chuck compatibility

Compatibility

Designed as an OEM-style replacement and production drill bit for use with standard keyless or keyed drill chucks accepting a 0.0785-inch straight-cylindrical shank; primary workpiece material rating is aluminum per manufacturer specification.

Installation Notes

This bit is installed by machinists and trade technicians using standard drill presses, hand drills, or CNC equipment with an appropriate chuck size. Secure the shank fully in the chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Use appropriate cutting fluid or lubrication when drilling aluminum to extend bit life and maintain hole quality. Inspect the cutting edges before each use and replace any bit showing chipping or dulling to avoid inaccurate hole diameter.