M.a. Ford. 20403600 Carbide Jobber Drill Bit No. 64

Product Description

The M.A. FORD. 20403600 is a solid carbide jobber length drill bit in wire gauge size No. 64, equivalent to 0.0360 inches decimal diameter. It is built for precise, small-diameter drilling in demanding materials including cast iron, stainless steel, carbon steel, and non-ferrous metals. The bright uncoated finish keeps the carbide substrate exposed for maximum heat visibility during dry cutting. At 1.5 inches overall length with a 0.5-inch flute length, this bit is suited for short, controlled entry work where rigidity and dimensional accuracy matter. A 118-degree faceted point with web thinning reduces thrust force at entry, which is critical at this diameter. Licensed trades and precision machine shops rely on this series for tight-tolerance work.

The 20403600 is designed for general-purpose drilling in ferrous and non-ferrous materials where a small wire gauge bit is required. The Series 204 designation covers M.A. FORD. jobber length carbide drills optimized for applications such as drilling pilot holes, through-holes in castings, and small-diameter work in stainless steel or hardened steel components. The 5xD flute-to-diameter ratio supports chip evacuation at depth relative to the bit size. This bit is appropriate for CNC machining centers, drill presses, and manual precision drilling operations where positional accuracy is required at sub-0.040-inch diameters.

Key Features

• Solid carbide construction provides rigidity and wear resistance for hard and abrasive materials
• No. 64 wire size, 0.0360-inch diameter with a tolerance of -0.0005 to 0.0000 inches for tight fit requirements
• 118-degree faceted drill point with web thinning reduces entry thrust and improves center accuracy
• Bright uncoated finish suitable for dry cutting or light coolant applications without coating interference
• Regular spiral, two-flute design promotes chip clearance in blind and through-hole applications
• ISO 9001:2015 certified manufacturing for dimensional consistency across production lots

Compatibility

Designed as a general-purpose OEM-style solid carbide jobber drill for use in standard straight-shank drill chucks and collet systems compatible with 0.0360-inch shank diameters. Suitable for cast iron, non-ferrous metal, stainless steel, and steel workpiece materials as indicated by material codes K, M, N, and P.

Installation Notes

This drill bit is installed by machining professionals and tool-room technicians in CNC or manual drilling equipment. Ensure the collet or drill chuck is rated for the 0.0360-inch straight-cylindrical shank before seating the bit. At this diameter, runout control is critical - inspect the spindle and chuck for concentricity before use. Do not exceed the recommended feed and speed parameters for carbide tooling in the target workpiece material, and avoid side-loading the bit, which can cause breakage at small diameters.