M.a. Ford. 20622100 Screw Machine Drill Bit 0.221 in

Product Description

The M.A. FORD. 20622100 is a screw machine length drill bit designed for precision drilling in demanding shop and production environments. Ground from solid carbide, this bit measures 0.221 inches in diameter with an overall length of 2.5 inches and a flute length of 1 inch. The 118-degree faceted point angle and web-thinned design reduce entry force and help the bit self-center on contact. The bright, uncoated finish is suitable for a range of metalworking applications where coating compatibility or regrinding is a consideration. This is a right-hand, two-flute spiral configuration on a straight-cylindrical shank.

This bit is built for use on cast iron, non-ferrous metals, stainless steel, and steel. The short flute-to-diameter ratio of 3xD and screw machine length body make it well-suited for drill press work, CNC machining centers, and turret lathe applications where rigidity and hole accuracy are priorities. Machinists and toolroom technicians working in production or job-shop environments will find the parallel web configuration and web-thinned point particularly effective when drilling tough alloys at higher feed rates.

Key Features

• Solid carbide construction for rigidity and wear resistance in metalworking operations
• 118-degree faceted drill point with web thinning for reduced thrust and accurate self-centering
• Right-hand cut with regular spiral flute for efficient chip evacuation
• Straight-cylindrical shank at 0.221 inches diameter fits standard collets and drill chucks
• Bright, uncoated finish — compatible with regrinding and use without coating-specific coolants
• Diameter tolerance of +0.0000 to -0.0005 inches for close-tolerance hole applications

Compatibility

Designed for use on cast iron, non-ferrous metal, stainless steel, and steel workpieces. Fits standard drill chucks and collet systems accepting a 0.221-inch straight-cylindrical shank. Part of the M.A. FORD. Series 206 screw machine length carbide drill line.

Installation Notes

This bit is intended for use by machinists and toolroom technicians on drill presses, CNC machining centers, and manual turret lathes. Ensure the spindle and workpiece are fully secured before engaging the drill. Solid carbide tooling is brittle compared to high-speed steel — avoid side loading, interrupted cuts at excessive feed rates, or dropping the tool on hard surfaces. Follow the machine manufacturer and tooling guidelines for recommended speeds and feeds based on workpiece material.