M.a. Ford 20402400 Carbide Drill Bit No 73 Wire Size

Product Description

The M.A. FORD 20402400 is a solid carbide jobber length drill bit designed for precision drilling in demanding materials. Built to Series 204 standards, it features a bright uncoated finish, a 118-degree faceted point, and a web-thinned tip geometry that reduces thrust and improves hole entry accuracy. The straight-cylindrical shank measures 0.0240 inches in diameter, matching the No. 73 wire gauge size. Overall length is 1.5 inches with a flute length of 0.25 inches, yielding a 5xD flute-to-diameter ratio suited for short, controlled drilling cycles. This bit is installed by machinists, tool-and-die technicians, and maintenance professionals working with tight-tolerance hole requirements.

The 20402400 is rated for general-purpose drilling in cast iron, non-ferrous metals, stainless steel, and carbon steel. Its two-spiral flutes with regular helix geometry provide efficient chip evacuation in these materials. The bit does not include coolant-through capability, making it appropriate for benchtop drill presses, CNC machining centers, and hand-operated drilling fixtures where external or flood coolant is applied as needed. The diameter tolerance of -0.0005 to 0.0000 inches supports close-fit hole applications where dimensional accuracy is critical.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials
• No. 73 wire size, 0.0240-inch diameter with a -0.0005 to 0.0000 inch diameter tolerance
• 118-degree faceted drill point with web-thinned, tapered web for reduced entry thrust
• Right-hand cut, regular spiral flute for consistent chip clearing
• Bright uncoated finish compatible with a wide range of cutting fluids
• ISO 9001:2015 certified manufacturing under Series 204

Compatibility

Designed as a general-purpose replacement or production drill bit for applications requiring a No. 73 wire gauge hole in cast iron, non-ferrous metal, stainless steel, or carbon steel workpieces.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with proper tooling setup. Secure the straight-cylindrical shank fully in the chuck or collet before operation and verify runout is within acceptable limits for the application. Apply appropriate cutting fluid externally, as this bit does not support coolant-through delivery. Do not exceed the recommended speed and feed parameters for the workpiece material and machine type.