Kennametal 2658218 Solid Carbide Jobber Drill 5/16 in

Product Description

The KENNAMETAL 2658218 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding production environments. Ground to a 140-degree point angle with a TiAlN coating, it handles elevated cutting temperatures and resists wear when running at aggressive speeds and feeds. The straight cylindrical shank measures 0.315 inches in diameter and fits standard drill chucks without adapters. At 3.5827 inches overall length with a 2.0866-inch flute length, it falls within the DIN 6537L specification for jobber drills. A web-thinned, parallel-web geometry reduces entry thrust and improves chip evacuation. Coolant-through capability makes it well suited for deep-hole applications where heat and chip buildup are concerns. Machinists and tool-room technicians working in job shops, aerospace, and general metalworking will find this drill suitable for production runs on difficult alloys.

This drill is rated for use in steel, stainless steel, cast iron, and aluminum and non-ferrous materials. It is a right-hand cutting, regular spiral flute design with a standard point type. The TiAlN coating provides thermal stability when cutting ferrous materials at higher surface footage. Typical applications include through-hole and blind-hole drilling on CNC machining centers, drill presses, and multi-spindle setups where consistent hole tolerance and tool life are priorities. The drill bit diameter tolerance of plus 0.006 to plus 0.021 mm meets DIN standards for controlled fit applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and non-ferrous materials
• TiAlN coating improves heat resistance and extends tool life at elevated cutting speeds
• 140-degree point angle reduces thrust and improves centering on entry
• Coolant-through design supports deep-hole drilling and chip flushing
• Web-thinned parallel-web geometry lowers cutting forces and aids chip evacuation
• DIN 6537L specification ensures dimensional consistency for production tooling setups

Compatibility

Designed for use in steel, stainless steel, cast iron, aluminum, and non-ferrous workpiece materials. Fits standard straight-shank drill chucks and collet systems accepting a 0.315-inch shank diameter. Conforms to DIN 6537L specification.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with cutting tool selection and machine setup. Secure the shank fully in the chuck or collet and verify runout before engaging the cut. When using coolant-through capability, confirm spindle coolant pressure and flow rate are compatible with the machine tool before starting the operation. Inspect the cutting edge and point geometry before each use and remove from service at the first sign of chipping or point wear to avoid workpiece damage.