M.a. Ford 20421300 Solid Carbide Jobber Drill Bit Wire 3

Product Description

The M.A. FORD 20421300 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding materials. It carries a wire gauge size of 3, equating to a decimal diameter of 0.2130 inches, with a 118-degree faceted point angle and a right-hand spiral flute configuration. The overall length is 3.0 inches with a flute length of 1-3/4 inches. The bright, uncoated finish keeps the carbide substrate exposed for maximum hardness and edge retention. Licensed HVAC and mechanical contractors, machinists, and industrial maintenance technicians are the primary users of this tool.

This drill bit is suited for general-purpose drilling in cast iron, non-ferrous metals, stainless steel, and carbon steel. The 5xD flute-to-diameter ratio and web-thinned, tapered web design reduce thrust and improve chip evacuation in deep-hole applications. It fits standard straight-cylindrical shank drill chucks across benchtop drill presses, CNC machining centers, and hand-held power drills used in shop and field environments.

Key Features

• Solid carbide construction delivers superior hardness and wear resistance compared to high-speed steel alternatives
• 118-degree faceted point angle provides accurate self-starting entry on flat and curved surfaces
• Web-thinned, tapered web reduces cutting thrust and improves hole quality in hard materials
• Right-hand spiral flute with regular helix efficiently evacuates chips from the cutting zone
• Bright uncoated finish maintains tight dimensional tolerances with a diameter tolerance of -0.0005 to 0.0000 inches
• ISO 9001:2015 certified manufacturing ensures consistent dimensional and performance standards

Compatibility

Designed as a general-purpose jobber length drill bit compatible with any standard straight-cylindrical shank chuck accepting a 0.2130-inch shank diameter; primary workpiece material codes K, M, N, and P cover cast iron, non-ferrous metal, stainless steel, and steel applications.

Installation Notes

Installation of this drill bit is performed by machinists, maintenance technicians, or qualified tradespeople using a properly rated drill press, CNC spindle, or handheld drill driver. Ensure the chuck is fully tightened and the workpiece is securely fixtured before operation to prevent bit deflection or breakage. Carbide is brittle compared to high-speed steel and is susceptible to chipping under lateral loads or hard impacts, so avoid side pressure during drilling. Coolant-through capability is not supported on this bit; apply external cutting fluid or dry-cut per the workpiece material requirements.