M.a. Ford 20404300 Carbide Drill Bit No 57 Wire Size

Product Description

The M.A. FORD 20404300 is a solid carbide jobber length drill bit sized to No. 57 wire gauge (0.0430 inches diameter) with a 118-degree faceted point angle. Built for precision drilling in demanding materials, it features a regular spiral flute with web thinning for improved chip evacuation and reduced thrust at entry. The straight-cylindrical shank measures 0.0430 inches in diameter, and the overall length is 1.5 inches with a flute length of 0.75 inches. The bright, uncoated finish keeps surface friction low and allows easy visual inspection for wear. This bit is a general-purpose cutting tool suited for production shops, tool rooms, and maintenance environments.

The 20404300 is rated for use in cast iron, non-ferrous metals, stainless steel, and steel, covering a broad range of workpiece materials encountered in metalworking and fabrication. The 5xD flute-by-diameter ratio and two-flute spiral design make it appropriate for through-hole and blind-hole applications in both manual and CNC drilling operations. Its compact 1.5-inch overall length suits tight fixture clearances and small-diameter work commonly found in precision machining and assembly operations.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• No. 57 wire size at 0.0430 inches diameter with diameter tolerance of -0.0005 to 0.0000 inches
• 118-degree faceted point with web thinning for reduced entry force and improved centering
• Regular spiral, two-flute design promotes consistent chip evacuation
• Bright uncoated finish compatible with a wide range of cutting fluids and lubricants
• Manufactured under ISO 9001:2015 certified quality standards

Compatibility

Designed as a general-purpose jobber length drill bit for use in CNC machining centers, drill presses, and hand-held drilling equipment capable of holding a 0.0430-inch straight-cylindrical shank. Suitable for drilling cast iron, non-ferrous metals, stainless steel, and steel workpieces.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tooling technicians familiar with small-diameter carbide tooling. Always power down and lock out the machine spindle before changing tooling. Solid carbide is brittle compared to high-speed steel; avoid side loading, interrupted cuts without proper feed reduction, or dropping the bit on hard surfaces. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole tolerance.