Kennametal 4150659 Solid Carbide Jobber Drill 4.50 Mm

Product Description

The KENNAMETAL 4150659 is a solid carbide jobber-length drill bit designed for high-performance metal cutting in demanding production and maintenance environments. The bit measures 4.50 mm (0.1772 inches) in diameter with an overall length of 74.00 mm (2.91 inches) and a flute length of 36.00 mm (1.42 inches). The 140-degree split point promotes accurate self-centering and reduces walking on entry. A multilayer TiAlN coating improves heat resistance and extends tool life at elevated cutting speeds. The whistle notch shank provides positive retention in compatible chucks. This drill is installed and used by machinists, toolroom technicians, and maintenance mechanics working with precision drilling applications.

The 4150659 is suited for drilling steel, stainless steel, cast iron, aluminum, and other non-ferrous materials in both residential shop and commercial production settings. The right-hand, regular spiral flute geometry promotes efficient chip evacuation in through-hole and blind-hole applications. It fits the 4.00 mm to 5.00 mm drill size range and is appropriate for use in CNC machining centers, drill presses, and hand-held power tools where a whistle notch shank is accepted.

Key Features

• 4.50 mm diameter solid carbide construction for rigidity and wear resistance
• 140-degree point angle for self-centering entry and reduced thrust force
• Multilayer TiAlN coating for extended tool life at high cutting temperatures
• Right-hand, regular spiral flute for reliable chip evacuation
• Whistle notch shank for positive chuck retention
• Rated for steel, stainless steel, cast iron, aluminum, and non-ferrous materials

Compatibility

Designed as a high-performance OEM-style jobber drill for use in equipment accepting a whistle notch shank in the 4.00 mm to 5.00 mm drill size range.

Installation Notes

Installation and tool changes should be performed with the machine fully powered down and the spindle at a complete stop. Secure the whistle notch shank firmly in a compatible chuck to the manufacturer-specified engagement depth before operation. Verify spindle speed and feed rate against material-specific cutting data before drilling. Dispose of worn carbide tooling in accordance with local regulations for carbide and coated cutting tools.