Kennametal 5990973 Solid Carbide Jobber Drill 11.20 Mm

Product Description

The KENNAMETAL 5990973 is a solid carbide jobber-length drill bit designed for precision hole-making in aluminum and non-ferrous materials. It measures 11.20 mm (0.4409 inches) in diameter with a 135-degree split-point angle that reduces walking and improves centering on entry. The overall length is 118.00 mm (4.6457 inches), with a 71.00 mm (2.7953 inches) flute length and a 5xD flute-to-diameter ratio. Coolant-through capability supports high-speed production environments where chip evacuation and heat management are critical. The bright, uncoated finish is suited for non-ferrous applications where coating adhesion or chemical reactivity would be a concern.

This drill is intended for use in CNC machining centers, drill presses, and automated production equipment where tight-tolerance hole quality in aluminum, copper, brass, and similar non-ferrous workpieces is required. The 3-flat shank design provides positive drive engagement and resists rotation in the tool holder. With a 56.00 mm maximum drilling depth, this bit handles standard production drilling tasks in light-to-medium-duty setups. It is typically installed and operated by machinists and CNC operators working in job shop or manufacturing environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in non-ferrous applications
• 135-degree point angle reduces entry walking and improves hole accuracy
• Coolant-through design supports high-feed machining and chip flushing
• 3-flat shank prevents tool rotation and provides secure holder engagement
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Bright, uncoated finish optimized for aluminum and non-ferrous materials

Compatibility

Designed for use in CNC machining centers and drill presses that accept a 12 mm shank diameter with a 3-flat drive interface. Primary workpiece compatibility is aluminum and non-ferrous materials as specified by the manufacturer.

Installation Notes

Installation and tool changes must be performed with the machine powered down and all motion axes confirmed stationary. Verify that the tool holder collet or chuck is clean and undamaged before seating the 3-flat shank. Confirm coolant-through channels are clear and that the machine coolant system is configured to deliver flow through the spindle before operation at elevated feed rates. Solid carbide tooling is brittle and should not be used in setups with excessive runout or unsupported workpiece vibration.