Kennametal 2658228 Solid Carbide Jobber Drill 27/64 Inch

Product Description

The KENNAMETAL 2658228 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding production environments. It carries a TiAlN coating and a 140-degree point angle, both of which reduce heat buildup and extend tool life in hard materials. The overall length is 4.6457 inches with a flute length of 2.7953 inches and a straight cylindrical shank diameter of 0.4724 inches. Coolant-through capability supports high-speed drilling applications where chip evacuation and thermal control are critical. This drill is installed and used by machinists and production drilling operations working to DIN 6537L standards.

This drill is suited for cutting steel, stainless steel, cast iron, aluminum, and other non-ferrous materials in both manual and CNC machining setups. The web-thinned, parallel-web construction reduces thrust force at entry, making it effective for through-hole and blind-hole applications. The right-hand, regular spiral flute design promotes consistent chip flow out of the cut zone. It covers the 0.4000 to 0.5000 decimal inch drill diameter range and is appropriate for industrial production, job shop, and maintenance machining work.

Key Features

• Solid carbide construction provides rigidity and wear resistance in high-hardness workpiece materials
• TiAlN coating extends tool life under elevated cutting temperatures
• 140-degree point angle reduces thrust and improves centering on hard materials
• Coolant-through design supports internal coolant delivery for deep-hole and high-speed applications
• Web-thinned parallel web reduces entry force and minimizes walking
• Conforms to DIN 6537L specification for consistent dimensional standards

Compatibility

Designed for use in steel, stainless steel, cast iron, aluminum, and non-ferrous materials as stated by the manufacturer. Suitable for CNC machining centers and drill presses equipped with straight-shank toolholding capable of accepting a 0.4724-inch shank diameter.

Installation Notes

This drill bit is installed and operated by machinists in CNC or manual drilling equipment. Ensure the machine spindle and toolholder are powered down and fully stopped before inserting or removing the bit. Verify that the toolholder chuck or collet is rated for the 0.4724-inch straight shank diameter before clamping. When using internal coolant-through capability, confirm the machine spindle and toolholder support through-coolant delivery before operation.