M.a. Ford 30201801 Wire 77 Micro Drill Bit Solid Carbide

Product Description

The M.A. FORD 30201801 is a solid carbide micro drill bit designed for precision small-diameter drilling in demanding materials. It carries a wire gauge size of 77, corresponding to a decimal diameter of 0.0180 inches, and features a 130-degree split-style point angle suited for accurate entry and reduced walking on hard surfaces. The overall length is 1.5 inches, with a flute length of 0.25 inches and a straight-cylindrical shank diameter of 1/8 inch. The bright, uncoated finish is standard for carbide micro drills used in applications where coating buildup tolerance is critical. This bit is installed and used by machinists, tool-and-die makers, and precision fabricators.

This micro drill bit is engineered for work in tight-tolerance applications across a wide range of workpiece materials including cast iron, hardened steel, stainless steel, alloy steel, aluminum, carbon steel, non-ferrous metals, special alloys, and tool steel. The fast spiral flute geometry promotes chip evacuation in deep micro-diameter holes. Right-hand cutting direction makes it compatible with standard CNC machining centers, drill presses, and precision hand-held spindle units configured for clockwise rotation. Series 302 positions it within M.A. FORD's dedicated micro-drilling line.

Key Features

• Wire size 77 with 0.0180 inch decimal diameter for precision micro-hole applications
• 130-degree drill point angle for accurate entry and reduced thrust in hard materials
• Solid carbide construction provides rigidity and wear resistance in abrasive workpiece materials
• Fast spiral flute design promotes chip evacuation in micro-diameter bores
• Straight-cylindrical 1/8 inch shank for compatibility with standard collet and chuck systems
• Bright, uncoated finish — no coating thickness variation affecting hole tolerances
• Diameter tolerance held to +0.0000 to -0.0005 inches for tight-fit hole requirements

Compatibility

Rated for primary workpiece materials including cast iron, hardened steel, stainless steel, non-ferrous metals, and steel; secondary materials include alloy steel, aluminum, carbon steel, special alloys, and tool steel. Designed for use in Series 302 M.A. FORD micro-drilling applications.

Installation Notes

Micro drill bits of this diameter require a precision collet or chuck rated for 1/8 inch shanks — standard drill chucks with excessive runout will cause breakage at this diameter. Set spindle speed and feed rate per the machine tool manufacturer and carbide tooling guidelines for the specific workpiece material; do not use feed rates calibrated for high-speed steel tooling. Secure the workpiece firmly before operation. Inspect the cutting edges under magnification before each use, as carbide micro drills at this diameter are brittle and may chip if previously overloaded.