M.a. Ford 20618750 3/16 Inch Carbide Drill Bit 118 Deg

Product Description

The M.A. FORD 20618750 is a screw machine length (stub length) drill bit designed for precision hole-making in demanding materials. Ground from solid carbide with a bright/uncoated finish, it features a 118-degree faceted point angle and a web-thinned, parallel-web construction that reduces entry force and promotes accurate starts. The straight-cylindrical shank measures 0.1875 inches in diameter, matching the 3/16-inch cutting diameter, for positive chuck engagement. With an overall length of 2.1875 inches and a flute length of 0.75 inches, the short, rigid body minimizes deflection in high-speed drilling operations. Machinists, tool-and-die makers, and precision fabricators working on CNC or manual equipment will find this bit suited to tight-tolerance work.

This drill bit is rated for use in cast iron, non-ferrous metals, stainless steel, and carbon and alloy steels. The screw machine length format is a standard choice in production drilling environments where stub rigidity matters more than depth reach — typical applications include cross-hole drilling, fixture plates, component machining, and precision part fabrication. The 3xD flute-to-diameter ratio and regular spiral flute geometry support efficient chip evacuation in short, controlled cuts. It ships as a single unit.

Key Features

• Solid carbide construction for hardness, heat resistance, and wear life in ferrous and non-ferrous materials
• 118-degree faceted point with web thinning reduces thrust force and centers the cut without a pilot hole
• Bright/uncoated finish — no coating buildup to affect dimensional tolerance on small-diameter holes
• Right-hand cut, regular spiral flute for standard CNC and manual drill press use
• Diameter tolerance held to +0.0000 to -0.0005 inches for close-fit hole requirements
• Straight-cylindrical shank fits standard 3-jaw chucks and collet systems without adapters

Compatibility

Designed for use in CNC machining centers, drill presses, and manual machines equipped with standard straight-shank toolholders or collets accepting a 0.1875-inch shank. Rated for primary workpiece materials including cast iron, non-ferrous metal, stainless steel, and steel per Series 206 specifications.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists familiar with cutting tool setup and safe machine operation. Secure the shank fully within the collet or chuck to the rated gripping depth before operating. Ensure the spindle and workpiece are rigidly fixtured to prevent walkout, especially on stainless steel and hardened materials. Follow machine manufacturer speed and feed recommendations for solid carbide tooling — running at incorrect parameters can cause brittle fracture in carbide.