M.a. Ford 20412000 Jobber Drill Bit No. 31 Solid Carbide

Product Description

The M.A. FORD 20412000 is a jobber-length drill bit designed for precision drilling in demanding metalworking applications. Built from solid carbide, this bit offers significantly greater hardness and wear resistance than high-speed steel alternatives, making it well suited for production drilling in tough materials. The 118-degree faceted point provides clean entry and accurate hole positioning. With an overall length of 2.25 inches and a flute length of 1.25 inches, the bit is sized for short-reach, high-accuracy work. The straight-cylindrical shank measures 0.1200 inches in diameter, matching the No. 31 wire gauge drill size. Web thinning reduces thrust load and improves chip evacuation at entry.

This drill bit is intended for use in machine-shop and maintenance environments where cast iron, non-ferrous metals, stainless steel, and carbon steel are common workpiece materials. The regular spiral flute and right-hand cut configuration make it compatible with standard drill presses, CNC machining centers, and hand-held pneumatic or electric drills running at appropriate speeds for carbide tooling. It is a general-purpose grade bit suited for through-holes and blind holes at depths within the 5xD flute-to-diameter ratio of this Series 204 design.

Key Features

• Solid carbide construction for extended tool life in abrasive and hard materials
• 118-degree faceted drill point for accurate, self-centering entry
• Web-thinned tapered web reduces thrust force and improves chip flow
• Bright uncoated finish maintains tight dimensional tolerances out of the box
• Right-hand cut, regular spiral flute compatible with standard machine spindles
• ISO 9001:2015 certified manufacturing for consistent dimensional accuracy

Compatibility

Designed for use in drilling cast iron, non-ferrous metals, stainless steel, and steel workpieces. Compatible with any drill press, machining center, or power drill that accepts a 0.1200-inch straight-cylindrical shank. Suitable for applications requiring a No. 31 wire gauge hole diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling professional familiar with carbide drill bit handling and speeds-and-feeds selection. Secure the shank fully in the chuck or collet before operation to prevent runout. Carbide tooling is brittle and should not be subjected to impact loads or side forces beyond its rated application. Do not use this bit for materials or speeds outside the general-purpose metal-cutting parameters appropriate for solid carbide jobber drills of this diameter.