Kennametal 4149632 Taper Length Drill Bit No. 3 Carbide

Product Description

The KENNAMETAL 4149632 is a taper length drill bit designed for precision hole-making in demanding machining applications. Built from solid carbide in the KC7325 material grade and coated with a multilayer TiAlN finish, this bit handles high-speed and high-temperature drilling where standard high-speed steel tooling falls short. The drill measures 0.2130 inches (wire size No. 3) in diameter with a 140-degree standard point angle that reduces thrust and improves centering on entry. Overall length is 3.75 inches with a 2.2047-inch flute length, giving it the reach needed for deeper bores without sacrificing rigidity. Coolant-through capability supports chip evacuation and tool life in production environments.

This drill bit is used in metalworking and machining operations where tight tolerances and consistent hole quality are required. The straight cylindrical shank at 0.2362 inches diameter fits standard drill chucks and collet systems on CNC machining centers, drill presses, and manual machines. The 8xD flute-to-diameter ratio and right-hand spiral flute geometry make it well suited for drilling ferrous and non-ferrous metals, hardened steels, and cast materials in both job-shop and production environments. The DIN 6537K specification ensures dimensional conformance to an established international standard.

Key Features

• Solid carbide KC7325 grade construction for rigidity and wear resistance in hard materials
• Multilayer TiAlN coating extends tool life at elevated cutting temperatures
• 140-degree standard point angle reduces entry thrust and improves self-centering
• Coolant-through design supports chip evacuation and thermal management in deep-hole applications
• Right-hand spiral flute with tapered web configuration for consistent chip flow
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed as an OEM-style replacement or direct application drill for use in standard straight-shank collet chucks and drill chucks accepting a 0.2362-inch shank diameter, conforming to Series B053A-CPG tooling.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and locked out per applicable safety procedures. Ensure the shank is fully seated and properly torqued in the collet or chuck before operation. Verify coolant-through lines are connected and flow is confirmed before initiating a drilling cycle. Do not exceed the rated maximum drilling depth of 1.8898 inches for this tool geometry.