Kennametal 4150690 Solid Carbide Jobber Drill 6.50 Mm

Product Description

The KENNAMETAL 4150690 is a solid carbide jobber-length drill bit engineered for high-performance drilling in metalworking applications. It measures 6.50 mm (0.2559 inches) in diameter and features a 140-degree split-point geometry that reduces walking and lowers thrust at entry. The multilayer TiAlN coating resists heat and wear, extending tool life in demanding production environments. At 91.00 mm overall length with a 53.00 mm flute length, the 4150690 fits standard jobber-drill setups on CNC machining centers, drill presses, and hand-held power tools. Licensed machinists and tooling technicians are the primary users.

This drill is suited for cutting steel, stainless steel, cast iron, aluminum, and other non-ferrous materials in both light manufacturing and production-floor environments. The right-hand spiral flute promotes efficient chip evacuation, which is especially important when drilling deeper holes in tight-tolerance workpieces. The whistle notch shank provides positive retention in standard drill chucks and collet holders, reducing slippage under torque. No through-coolant is required, making the 4150690 compatible with dry or mist-lubricated setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and non-ferrous materials
• 140-degree point angle reduces entry walking and lowers axial thrust
• Multilayer TiAlN coating extends tool life in high-temperature cutting conditions
• Right-hand regular spiral flute for efficient chip evacuation
• Whistle notch shank provides positive chuck retention and prevents rotation slip
• No through-coolant required — compatible with dry or mist-lubrication setups

Compatibility

Designed as an OEM-style solid carbide jobber drill for use in standard drill chucks and collet holders accepting a 6.50 mm shank across CNC machining centers, drill presses, and handheld drilling equipment.

Installation Notes

Installation and tool changes should be performed by qualified machinists or tooling technicians with the spindle fully stopped and machine power locked out. Verify chuck or collet runout before seating the drill to avoid premature edge chipping. Solid carbide tooling is brittle — avoid side loading or interrupted cuts beyond the drill's rated application range. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed selection.