Kennametal 2658223 Carbide Jobber Drill Letter U 0.368 in

Product Description

The KENNAMETAL 2658223 is a solid carbide jobber-length drill bit sized to Letter U (0.3680 inches) with a 140-degree split-point geometry and a TiAlN (titanium aluminum nitride) coating. It is designed for high-performance drilling in demanding production environments. The web-thinned, standard point reduces entry force and improves self-centering on flat and curved surfaces. Coolant-through capability delivers cutting fluid directly to the tip, extending tool life and supporting higher feed rates in deep-hole applications. Machinists and CNC operators in job shops, aerospace, and general manufacturing are the primary users of this drill.

This drill is well suited for cutting steel, stainless steel, cast iron, and aluminum and non-ferrous materials. The TiAlN coating provides thermal resistance, making it effective in dry or minimal-lubrication machining where heat buildup would degrade an uncoated or HSS tool. The straight cylindrical shank fits standard drill chucks and collet holders sized for a 0.3937-inch (10 mm) shank. Right-hand cut with a regular spiral flute provides efficient chip evacuation in through-hole and blind-hole drilling. Conforms to DIN 6537L specification.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating for thermal and oxidation resistance in high-speed and dry cutting
• 140-degree point angle with web thinning reduces thrust and improves hole entry accuracy
• Coolant-through design delivers fluid at the cutting edge for extended tool life
• Regular spiral flute with parallel web for consistent chip evacuation
• Conforms to DIN 6537L specification for predictable dimensional performance

Compatibility

Designed for use in CNC machining centers and drill presses with straight-shank collet or drill chuck toolholders accommodating a 0.3937-inch shank. Suitable for primary workpiece materials including steel, stainless steel, cast iron, and aluminum and non-ferrous alloys.

Installation Notes

Installation and use should be performed by a qualified machinist or CNC operator. Secure the shank fully in a collet or drill chuck to the manufacturer-recommended engagement depth before operation. Verify coolant-through connections are properly routed before initiating a cut. Inspect the cutting edge for chipping or wear before each use, as carbide drills can fail suddenly if run in a damaged state.