Kennametal 5990911 Solid Carbide Jobber Drill No. 26

Product Description

The KENNAMETAL 5990911 is a solid carbide jobber-length drill designed for precision hole-making in aluminum and non-ferrous materials. It cuts a No. 26 wire gauge diameter of 0.1470 inches with a 135-degree split-point geometry that reduces walking and minimizes thrust at entry. The 2-flute right-hand spiral configuration provides efficient chip evacuation in softer, gummy materials. At 2.5984 inches overall length with a 1.1024-inch flute length, this drill fits standard jobber-length toolholders and drill chucks. Coolant-through capability supports high-speed production environments where heat management and chip control are critical. Licensed machinists, CNC operators, and tool-and-die professionals are the primary users of this drill.

This drill is suited for light-to-medium production drilling in aluminum, brass, copper, and other non-ferrous alloys in both manual and CNC machining setups. The 3-flat shank with a 6 mm shank diameter seats securely in set-screw toolholders, reducing pullout risk under axial load. Its 5xD flute-to-diameter ratio and 23.00 mm maximum drilling depth make it appropriate for through-hole and blind-hole applications in moderate material stack-ups. Typical applications include aerospace structural components, electrical enclosures, and general fabrication work where tight diameter tolerance is required.

Key Features

• No. 26 wire gauge diameter of 0.1470 inches with a diameter tolerance of 0.0002 to 0.0006 inches
• 135-degree drill point angle reduces thrust and minimizes drill walk at entry
• Solid carbide construction delivers superior hardness and wear resistance versus high-speed steel
• Coolant-through design supports chip flushing and thermal control in high-cycle drilling
• 3-flat shank prevents rotation in set-screw toolholders during cutting
• Bright/uncoated finish optimized for aluminum and non-ferrous workpiece materials

Compatibility

Designed for use in CNC machining centers, drill presses, and manual mills configured for non-ferrous drilling with 6 mm shank toolholders or standard jobber-length drill chucks. Primary workpiece material compatibility is aluminum and non-ferrous alloys per manufacturer specification.

Installation Notes

Installation and tool changes should be performed only after the spindle has come to a complete stop and the machine has been locked out per applicable safety procedures. Verify that the toolholder set-screw engages one of the three flats on the shank to prevent axial pullout. Inspect the cutting edges and point for chipping before each use, as solid carbide is brittle and susceptible to damage from interrupted cuts or improper handling. Follow the machine tool manufacturer and tooling supplier feeds-and-speeds recommendations for the specific workpiece material.