Kennametal 4150230 Micro Drill Bit 6.35mm Solid Carbide B041A

Product Description

The KENNAMETAL 4150230 is a solid carbide micro drill bit designed for precision hole-making in demanding machining applications. Built from solid carbide, this bit delivers the rigidity and wear resistance required for drilling in hardened materials, composites, and tight-tolerance bores. It measures 6.35 mm in diameter with an overall length of 79 mm and a flute length of 34 mm. The straight cylindrical shank provides consistent chuck engagement. This drill is intended for use by machinists and CNC operators working in production or toolroom environments where accuracy and tool life are critical.

The 4150230 is suited for use in CNC machining centers, drill presses, and precision manual machines where micro-diameter drilling is required. The right-hand cutting direction makes it compatible with standard spindle rotation. Its solid carbide construction handles interrupted cuts and abrasive materials better than high-speed steel alternatives. Typical applications include component manufacturing in aerospace, automotive, and electronics sectors where tight hole tolerances are required.

Key Features

• Solid carbide construction for high rigidity and extended tool life in abrasive materials
• 6.35 mm drill diameter for precision micro-bore applications
• 79 mm overall length with a 34 mm flute length for controlled chip evacuation
• Straight cylindrical shank for consistent holding in standard drill chucks and collets
• Right-hand cutting direction for use with standard spindle rotation
• Part of the B041A series for consistent geometry and interchangeability

Compatibility

Designed as an OEM-style replacement or standard tooling option for machines accepting a 6.35 mm straight cylindrical shank micro drill bit in right-hand cutting configurations.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the straight cylindrical shank firmly in a compatible collet or drill chuck to the appropriate clamping specification for your tool-holding system. Verify spindle direction is set to right-hand rotation before beginning the cut.