M.a. Ford 20415900 Jobber Drill Bit No. 21 Solid Carbide

Product Description

The M.A. FORD 20415900 is a solid carbide jobber length drill bit sized at No. 21 wire gauge (0.1590 inches decimal equivalent) with a 118-degree faceted point angle. It is designed for general-purpose drilling in demanding materials including steel, stainless steel, cast iron, and non-ferrous metals. The bit features a regular spiral flute, a web-thinned and tapered web configuration for improved chip evacuation, and a bright uncoated finish. With an overall length of 2.5 inches and a flute length of 1.375 inches, it fits standard drill chucks via its straight-cylindrical shank. Licensed tradespeople and machinists install this bit in production and maintenance drilling applications.

This drill bit is suited for general-purpose metal drilling in both shop and field environments. The solid carbide construction makes it appropriate for harder workpiece materials where high-speed steel tooling would wear prematurely. It is especially applicable in fabrication, maintenance repair, and toolroom operations involving steel, stainless steel, cast iron, and non-ferrous metal workpieces. The 5xD flute-to-diameter ratio supports efficient chip removal in moderate-depth holes. Series 204 identifies it within M.A. FORD jobber drill offerings built to ISO 9001:2015 quality standards.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 118-degree faceted point for accurate starting and reduced walking on entry
• Web-thinned and tapered web reduces thrust and improves chip flow
• Regular spiral flute with 5xD ratio supports chip evacuation in standard-depth holes
• Bright uncoated finish suitable for use with cutting fluids applied externally
• Right-hand cut with straight-cylindrical shank for compatibility with standard drill chucks and collets

Compatibility

Designed as a general-purpose jobber length drill bit compatible with standard drill chucks and collets accepting a 0.1590-inch straight-cylindrical shank. Suitable for workpiece materials coded K (cast iron), M (stainless steel), N (non-ferrous metal), and P (steel) per the input specifications.

Installation Notes

This bit is installed and operated by machinists, toolroom technicians, and qualified maintenance tradespeople using drill presses, CNC machining centers, or hand-held power drills with appropriate chuck capacity. Secure the shank fully in the chuck or collet before operation and confirm the workpiece is properly fixtured. Solid carbide tooling is brittle and should not be subjected to side-loading or impact; use appropriate speeds and feeds for the workpiece material. Apply a compatible cutting fluid externally when drilling ferrous materials to extend tool life and improve hole quality.