Cleveland C73472 Jobber Drill Bit No. 44 Hss 118 Deg

Product Description

The CLEVELAND C73472 is a wire gauge No. 44 jobber length drill bit designed for precision hole-making in metalworking and general machining applications. Manufactured from high speed steel with a bright uncoated finish, the bit features a 118-degree split point for fast penetration and reduced walking on entry. The 2-flute spiral flute design with a regular helix promotes efficient chip evacuation. Overall length is 2.125 inches with a 1.125-inch flute length and a straight-cylindrical shank measuring 0.0860 inches in diameter. The decimal inch drill diameter is 0.0860 inches with a tight tolerance of -0.0005 to 0.0000 inches. Machining professionals and tool-room technicians install this bit in standard drill presses, CNC machines, and hand drills.

This jobber length drill bit is rated heavy duty and is suited for drilling aluminum as its primary workpiece material, though its high speed steel construction handles a range of softer metals and plastics encountered in production and maintenance settings. The web-thinned, tapered web design reduces cutting resistance, making it well-suited for tight-tolerance work in light manufacturing, aerospace component production, and MRO applications. The straight-cylindrical shank seats securely in standard Jacobs-style chucks without adapters.

Key Features

• Wire gauge No. 44 size — 0.0860-inch decimal equivalent with -0.0005 to 0.0000-inch diameter tolerance
• 118-degree split point reduces thrust and minimizes bit walking on entry
• Web-thinned tapered web lowers cutting resistance for cleaner, faster penetration
• High speed steel construction with bright uncoated finish — no coating buildup in fine-diameter cuts
• Regular spiral flute with 2 flutes promotes consistent chip evacuation
• Meets NAS 907 Type A specification — heavy duty grade for production use

Compatibility

Designed as a standard jobber length replacement bit for any drill press, CNC machining center, or hand drill equipped with a chuck accepting a 0.0860-inch straight-cylindrical shank. Primary workpiece material compatibility is aluminum per manufacturer specification.

Installation Notes

Installation of this drill bit is performed by machinists and maintenance technicians using a standard keyed or keyless chuck. Secure the straight-cylindrical shank fully into the chuck and verify concentricity before drilling. Always power down and de-energize the machine before changing bits. Follow applicable shop safety protocols and OSHA machine guarding requirements when operating drilling equipment.