Kennametal 4151798 Solid Carbide Jobber Drill 3/32 in 140 Deg

Product Description

The KENNAMETAL 4151798 is a solid carbide jobber-length drill bit with a 3/32 inch (0.0938 inch decimal) diameter and a 140-degree split-point geometry. It is coated with a multilayer TiAlN finish for extended tool life in demanding cutting applications. The drill features a regular spiral flute, a straight cylindrical shank, and right-hand cutting direction. With an overall length of 58.00 mm (2.284 inches) and a flute length of 22.00 mm (0.866 inches), it is sized for typical jobber-length drilling work. This bit is installed and used by machinists, tool-and-die workers, and metalworking professionals on drill presses, CNC machining centers, and hand-held production equipment.

The 4151798 is designed for drilling steel, stainless steel, cast iron, aluminum, and other non-ferrous metals. Its 5xD flute-to-diameter ratio supports moderate hole depths in these materials without the need for coolant-through capability. The tapered web configuration and 140-degree point angle help reduce thrust and improve centering on ferrous and non-ferrous workpieces alike. This drill is well-suited for production environments where consistent, repeatable hole quality in small-diameter work is required. It conforms to DIN 6537K specification, making it a recognized standard in industrial tooling applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in metalworking applications
• Multilayer TiAlN coating improves heat resistance and extends service life in steel and stainless steel
• 140-degree point angle reduces thrust and improves self-centering on entry
• Tapered web configuration adds strength at the drill tip
• Regular spiral flute design promotes chip evacuation in standard drilling operations
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed for use in drilling steel, stainless steel, cast iron, aluminum, and non-ferrous materials. Fits any standard drill chuck or collet accepting a 0.625 inch (4 mm) straight cylindrical shank. Suitable for use on CNC machining centers, drill presses, and other production drilling equipment.

Installation Notes

This drill bit is installed by machinists or toolroom personnel into a compatible chuck or collet holder. Ensure the machine spindle is fully stopped and the machine is powered down before changing tooling. Verify chuck or collet runout is within acceptable limits before operation, as excessive runout will accelerate wear on small-diameter carbide tooling. Follow applicable shop safety procedures and machine manufacturer guidelines when setting feeds and speeds for the workpiece material.