Kennametal 4112622 Solid Carbide Jobber Drill 6.40 Mm

Product Description

The KENNAMETAL 4112622 is a solid carbide jobber-length drill bit designed for precision hole-making in steel and other ferrous materials. It measures 6.40 mm (0.2520 inches) in diameter with a 135-degree split-point angle for self-centering and reduced thrust. The multilayer TiAlN coating extends tool life by improving heat resistance and wear performance at elevated cutting speeds. Overall length is 91.00 mm (3.58 inches), with a flute length of 53.00 mm (2.09 inches). This drill conforms to DIN 6537K geometry and is suited for CNC machining centers and production drilling operations where tight tolerances and consistent hole quality are required.

This jobber drill is intended for use in metalworking and machining environments, primarily targeting steel workpieces. The straight cylindrical shank seats in standard drill chucks and collet holders. Coolant-through capability supports chip evacuation and thermal management in deep-hole applications. With a 5xD flute-to-diameter ratio and a maximum drilling depth of 43.00 mm (1.69 inches), this tool fits general-purpose production drilling where hole diameter tolerance and surface finish consistency matter. It is suited for machine shops, tooling departments, and maintenance machining operations.

Key Features

• Solid carbide construction with material grade KCPK15 for wear resistance in steel applications
• Multilayer TiAlN coating improves heat resistance and extends tool life at high cutting speeds
• 135-degree standard point angle for self-centering entry and reduced thrust load
• Coolant-through design supports chip evacuation and heat control in deep drilling
• DIN 6537K specification ensures consistent geometry and dimensional accuracy
• Diameter tolerance held to 0.0002 to 0.0008 inches for repeatable hole sizing

Compatibility

Designed as an OEM-style replacement or direct tooling selection for CNC drilling operations on steel workpieces within the 6.00 mm to 7.00 mm diameter range, using standard straight-shank drill chucks or collet holders accepting an 8 mm shank diameter.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with CNC or manual drill press setup. Secure the straight cylindrical shank fully in a properly sized collet or chuck before spindle engagement. Verify coolant-through supply pressure and flow rate are correctly configured before beginning drilling cycles. Do not exceed the rated maximum drilling depth of 43.00 mm per pass without confirming chip evacuation is functioning properly.