M.a. Ford 20405200 Carbide Drill Bit No. 55 0.0520 in

Product Description

The M.A. FORD 20405200 is a solid carbide jobber length drill bit sized at No. 55 (0.0520 inches decimal equivalent) with a 118-degree faceted point angle. Designed for general-purpose drilling, it features a right-hand spiral flute and a web-thinned, tapered web configuration that reduces thrust at the drill tip. The straight-cylindrical shank measures 0.0520 inches in diameter and mates with standard drill chucks. At 1.5 inches overall length with a 0.75-inch flute length, this bit suits close-tolerance drilling in confined areas. The bright, uncoated finish is standard for carbide tooling in this size range and allows direct inspection of the cutting edge condition.

This drill bit is rated for use in cast iron, non-ferrous metals, stainless steel, and steel. The 5xD flute-to-diameter ratio and two-flute spiral geometry support chip evacuation in short-hole drilling applications common to precision machining, toolroom work, and maintenance operations. It is part of M.A. FORD Series 204 and falls within the 0.0500 to 0.1000-inch drill bit size range. Typical applications include through-hole drilling on CNC machining centers, drill presses, and hand-held pneumatic or electric drills where a small-diameter carbide bit is required for hard or abrasive workpiece materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• 118-degree faceted drill point with web thinning to reduce entry thrust
• Right-hand cut, regular spiral flute for standard chip evacuation
• No. 55 wire gauge size - 0.0520-inch decimal diameter with a -0.0005 to 0.0000-inch diameter tolerance
• Straight-cylindrical shank fits standard drill chucks without adapters
• ISO 9001:2015 certified manufacturing for dimensional consistency

Compatibility

Designed as a general-purpose OEM-style replacement or production drill bit for any drill press, CNC machining center, or hand drill accepting a 0.0520-inch straight-cylindrical shank. Suitable for workpieces classified under material codes K, M, N, and P, covering cast iron, non-ferrous metals, stainless steel, and steel.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard drill chuck sized for small-diameter shanks. Secure the shank fully in the chuck before operation to prevent runout and premature bit breakage. Solid carbide bits are brittle - avoid side loading, pecking with excessive force, or use in applications with significant vibration without proper workholding. Verify spindle speed and feed rate are appropriate for carbide tooling at this diameter before cutting.