M.a. Ford. 22939060 Solid Carbide Jobber Drill Bit 25/64

Product Description

The M.A. FORD. 22939060 is a solid carbide jobber length drill bit designed for high-performance drilling in non-ferrous metals and similar materials. It features a 150-degree drill point angle, a parabolic flute geometry, and a bright uncoated finish. The three-flute configuration with a web-thinned, tapered web improves chip evacuation and reduces thrust at entry. Overall length is 4.5 inches with a flute length of 2.875 inches and a maximum drilling depth of 2.156 inches. The straight cylindrical shank measures 25/64 inches in diameter. This bit is sold individually and is handled by machinists, toolroom technicians, and precision drilling contractors.

The 22939060 is built for drilling non-ferrous metals including aluminum, brass, copper, and similar materials classified under workpiece material code N and O. The parabolic flute with 5xD flute-to-diameter ratio supports deeper hole entry with efficient chip clearance in production and job-shop environments. It is suited for CNC machining centers and manual drill presses where tight diameter tolerances are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in non-ferrous applications
• 150-degree drill point angle with standard point type for clean entry
• Three parabolic flutes with 5xD ratio for improved chip evacuation at depth
• Web-thinned, tapered web reduces axial thrust and improves hole quality
• Bright uncoated finish suited for non-ferrous metals where coating adhesion is unnecessary
• Diameter tolerance held to 0.0003 to 0.0010 inches for precise fitment
• Manufactured to DIN 6537 L and produced under ISO 9001:2015 certified processes

Compatibility

Designed for use in non-ferrous metal drilling applications under workpiece material codes N and O, including aluminum, brass, and copper. Fits standard straight-shank collets and drill chucks accepting a 25/64-inch shank diameter. Part of the M.A. FORD. Series 229 jobber drill family.

Installation Notes

Installation and use of solid carbide drill bits should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Always ensure the spindle and workpiece are secured before initiating a cut, and confirm chuck or collet runout is within acceptable limits to avoid bit breakage. Carbide is brittle and sensitive to side loading — do not use in hand-held drill applications. Power down the machine and lock out the spindle before changing or inspecting tooling.