Kennametal 4054504 Screw Machine Drill Bit Size 1 Carbide

Product Description

The KENNAMETAL 4054504 is a stub-length (screw machine length) solid carbide drill bit designed for high-performance drilling in demanding production environments. Ground to wire size Number 1, it produces a 0.2280-inch diameter hole with a 140-degree split-point geometry that improves self-centering and reduces thrust force at entry. The multilayer TiAlN coating extends tool life by resisting heat and abrasion at elevated cutting speeds. Coolant-through capability delivers fluid directly to the cutting edge, making this bit suitable for deep-hole finishing and tight-tolerance work in metals and engineered materials. Installation and operation are performed by machinists and tool-and-die professionals working on CNC machining centers, drill presses, and multi-spindle screw machines.

This drill bit is sized for applications where a stub-length configuration improves rigidity and minimizes deflection in short-depth drilling operations. With a maximum drilling depth of 0.7874 inches and a flute-to-diameter ratio of 3xD, it is suited for high-volume production drilling in ferrous and non-ferrous metals where dimensional accuracy and surface finish consistency are required. The straight cylindrical shank accepts standard drill chucks and collet holders with a 0.2362-inch shank diameter. Manufactured to DIN 6537K specification, this bit is built for repeatable results in tight-tolerance machining environments.

Key Features

• Solid carbide construction for maximum rigidity and wear resistance in production drilling
• Multilayer TiAlN coating resists heat and abrasion at high cutting speeds
• 140-degree point angle improves self-centering and reduces thrust at entry
• Coolant-through design delivers fluid directly to the cutting zone for extended tool life
• Stub length (screw machine length) minimizes deflection in short-depth applications
• Manufactured to DIN 6537K specification with a diameter tolerance of +0.0002 to +0.0006 inches

Compatibility

Designed as a Series B976A screw machine length drill bit for use in CNC machining centers, drill presses, and multi-spindle machines equipped with standard drill chucks or collet holders accepting a 0.2362-inch straight cylindrical shank.

Installation Notes

Install and remove drill bits only with the machine powered down and the spindle fully stopped. Seat the straight shank fully and evenly in the collet or chuck before tightening to the tool holder manufacturer's specification. Verify coolant-through passages are clear and that coolant pressure meets the machine tool's recommended range before running at full feed and speed. Follow applicable shop safety standards and machine tool manufacturer guidelines when setting speeds, feeds, and depth stops.