Kennametal 4150222 Carbide Drill Bit 5.70mm 140 Deg

Product Description

The KENNAMETAL 4150222 is a screw machine length (stub) drill bit engineered for precision hole-making in metal and hard materials. Built from solid carbide and finished with a multilayer TiAlN coating at the tip, this bit delivers wear resistance and thermal stability in high-speed drilling applications. The 140-degree split-point geometry reduces thrust and improves self-centering on entry. With an overall length of 66.00 mm (2.598 inches) and a 5.70 mm cutting diameter, this drill is sized for tight-clearance setups where a jobber-length bit would interfere. It conforms to DIN 6537K specification and is part of the B041A-CPG series.

This drill bit is suited for machining operations in job shops, production environments, and maintenance facilities where short, rigid tooling is required. The stub-length profile minimizes deflection during drilling, making it appropriate for CNC machining centers, drill presses, and manual screw machine setups. Maximum drilling depth is 20.00 mm (0.787 inches). It is installed by machinists, tool-and-die professionals, and skilled maintenance technicians working with ferrous metals, stainless steels, cast iron, and similar hard workpiece materials.

Key Features

• Solid carbide construction for rigidity and extended tool life in hard materials
• Multilayer TiAlN tip coating resists heat and abrasion at elevated cutting speeds
• 140-degree standard point angle reduces entry thrust and improves hole accuracy
• Stub-length (screw machine length) body provides maximum rigidity and minimal runout
• Straight cylindrical shank (6.00 mm diameter) fits standard drill chucks and collets
• 2-flute regular spiral design promotes chip evacuation in short-depth drilling
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed as an OEM-style replacement or production tooling option for applications requiring a 5.70 mm solid carbide stub drill conforming to DIN 6537K, within the 5.00 mm to 6.50 mm diameter range, using a 6.00 mm straight cylindrical shank.

Installation Notes

Install in a compatible collet or drill chuck rated for the 6.00 mm straight shank diameter and ensure runout is within acceptable tolerance before operation. Power down and de-energize the machine completely before changing tooling. Confirm the workpiece is securely fixtured and that spindle speed and feed rate are set per the material being drilled. Do not exceed the maximum drilling depth of 20.00 mm without retracting to clear chips.