Kennametal 4150655 Carbide Jobber Drill 0.1660 in 140 Deg

Product Description

The KENNAMETAL 4150655 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding production and maintenance environments. It measures 0.1660 inches (Wire Size #19) in diameter with a 140-degree split-point geometry that reduces walking and improves entry accuracy. The TiAlN coating increases surface hardness and heat resistance, extending tool life in abrasive and high-heat applications. Overall length is 2.91 inches (74.00 mm). The straight cylindrical shank measures 0.3125 inches in diameter. Licensed machinists, tool-and-die techs, and maintenance professionals install and operate this bit in CNC machining centers and manual drill presses.

This drill bit is suited for production drilling in steel, stainless steel, cast iron, aluminum, and other non-ferrous materials. The 5xD flute-to-diameter ratio and regular spiral flute design provide efficient chip evacuation in through-hole and blind-hole operations. It is built to DIN 6537K specification, making it a recognized standard for jobber drills in both domestic and international machining environments. Typical applications include precision hole-making in fabrication shops, job shops, and industrial maintenance settings where consistent diameter tolerance and tool longevity are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating improves heat resistance and extends tool life in steel and stainless steel
• 140-degree point angle reduces thrust and minimizes drill walking at entry
• Regular spiral flute with tapered web configuration promotes reliable chip evacuation
• Right-hand cutting direction; compatible with standard CNC and manual spindle setups
• Conforms to DIN 6537K specification for consistent dimensional accuracy

Compatibility

Designed as an OEM-specification replacement and production jobber drill for use in straight-shank drill chucks and collet systems accepting a 0.3125-inch shank diameter. Primary workpiece materials include steel, stainless steel, cast iron, aluminum, and non-ferrous alloys.

Installation Notes

Installation and operation should be performed by qualified machinists or maintenance technicians familiar with CNC or manual drilling equipment. Secure the straight shank fully in a compatible drill chuck or collet before operating. Ensure spindle speed and feed rate are set according to the workpiece material and diameter recommendations from the machine manufacturer. Coolant-through is not supported on this bit; external coolant or cutting fluid should be applied where required by the application.