Kennametal 5990956 Solid Carbide Jobber Drill 10.20 Mm

Product Description

The KENNAMETAL 5990956 is a solid carbide jobber-length drill designed for precision hole-making in aluminum and non-ferrous materials. It features a 135-degree split-point geometry that reduces walking and lowers thrust at entry, making it well suited for production drilling where positional accuracy matters. The 10.20 mm cutting diameter and bright uncoated finish make it a direct-use tool straight from the package, without the added cost of a coating that non-ferrous applications rarely require. Coolant-through capability supports chip evacuation and heat management during deeper passes. This drill is installed and operated by machinists, tooling technicians, and CNC operators in metal fabrication and production environments.

This drill is engineered for use in aluminum, brass, copper, and other non-ferrous workpiece materials in both manual and CNC drilling applications. The 5xD flute-to-diameter ratio and 56.00 mm maximum drilling depth make it appropriate for moderate-depth bores in production runs. The 3-flat shank style seats securely in standard drill chucks and collet holders, preventing rotation under load. It is commonly applied in aerospace component work, general metalworking, and high-volume part production where dimensional consistency is critical.

Key Features

• Solid carbide construction provides rigidity and wear resistance in non-ferrous cutting applications
• 135-degree point angle reduces thrust and minimizes drill walk at entry
• Coolant-through design channels fluid directly to the cutting edge for chip evacuation and thermal control
• Bright uncoated finish is optimized for aluminum and non-ferrous materials where coating buildup can cause adhesion issues
• 3-flat shank prevents rotation in chuck or collet holder under high torque
• Two-flute regular spiral geometry promotes efficient chip clearance through the full flute length

Compatibility

Designed for use in CNC machining centers, drill presses, and manual drilling setups equipped with a chuck or collet holder accepting a 12 mm shank. Intended for aluminum and non-ferrous workpiece materials. Drill bit diameter tolerance of 0.0003 to 0.0010 inches suits close-tolerance production drilling.

Installation Notes

A licensed machinist or qualified tooling technician should seat the drill securely in a properly sized collet or chuck before operation. Confirm the machine spindle is fully stopped and locked out before installing or removing the tool. Verify coolant-through passages are clear and that coolant pressure is set per the machine tool specification before engaging the cut. Inspect the cutting edges for chipping or wear before each use, as solid carbide tools are brittle and can fracture if run in a damaged state.