M.a. Ford. 20412000A Solid Carbide Jobber Drill Wire Size 31

Product Description

The M.A. FORD. 20412000A is a solid carbide jobber-length drill bit designed for precision hole-making in ferrous and hard materials. It carries an ALtima aluminum titanium nitride (AlTiN) coating, which increases surface hardness and heat resistance for extended tool life in demanding applications. The drill measures 0.1200 inches in diameter (wire size 31) with an overall length of 2.25 inches and a flute length of 1.25 inches. The 118-degree, 4-facet point geometry combined with web thinning reduces thrust force at entry and improves centering accuracy. Two regular spiral flutes provide efficient chip evacuation. This bit is part of M.A. FORD. Series 204 and is manufactured under ISO 9001:2015 certified processes.

This jobber drill is suited for general-purpose drilling in steel, stainless steel, and cast iron. Its small diameter and straight cylindrical shank make it a practical choice for precision work in fabrication shops, maintenance operations, and toolroom environments. The right-hand cutting direction and regular spiral flute design are compatible with standard drill presses, CNC machining centers, and hand-held power drills. It is appropriate for machinists, tool-and-die makers, and maintenance technicians working with ferrous metals and hard alloys where tool longevity and dimensional accuracy are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN (ALtima) coating extends tool life in high-heat cutting conditions
• 118-degree 4-facet point with web thinning reduces entry thrust and improves centering
• Flute-to-diameter ratio of 5xD supports chip flow in deeper holes
• Straight cylindrical shank fits standard chucks without adapters
• ISO 9001:2015 certified manufacturing for dimensional consistency

Compatibility

Designed as a general-purpose replacement or working drill for applications requiring a wire size 31 (0.1200 inch) solid carbide jobber drill. Rated for primary workpiece materials including steel, stainless steel, and cast iron per material codes K, M, N, and P.

Installation Notes

Install in a properly sized chuck that matches the 0.1200-inch straight shank diameter and ensure the bit is fully seated before applying power. Carbide is brittle compared to high-speed steel and can chip if subjected to side loading or interrupted cuts without adequate support. Use appropriate cutting speeds and feeds for the workpiece material. Inspect the cutting edge before each use and do not force a chipped or worn bit.