Kennametal 4148805 Micro Drill Bit 1.60mm Solid Carbide Tialn

Product Description

The KENNAMETAL 4148805 is a solid carbide micro drill bit designed for precise small-diameter hole drilling in demanding machining applications. At 1.60 mm (0.0630 inches) in diameter, it features a 140-degree drill point angle and a TiAlN coating that extends tool life under high-heat cutting conditions. The overall length is 58.00 mm (2.2835 inches), with a straight-cylindrical shank measuring 4.00 mm in diameter and 28.00 mm in length. Built to DIN 6537K specification, this drill is suited for CNC machining centers and precision drilling cells where tight tolerances and consistent hole geometry are required.

This micro drill bit is used in precision metalworking and manufacturing environments, including aerospace, automotive, medical device, and general machining. It is appropriate for drilling small-diameter through-holes and blind holes in ferrous and non-ferrous metals where dimensional accuracy is critical. The 1.60 mm diameter and 6.00 mm maximum drilling depth make it a practical tool for fine-feature workpieces. Coolant-through capability supports chip evacuation and thermal management in high-cycle production drilling. The Series B051A-CPG designation identifies it within the KENNAMETAL standard micro drill line.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating for elevated heat resistance and extended tool life
• 140-degree drill point angle for reduced thrust and accurate entry
• Coolant-through design aids chip clearing and temperature control
• Straight-cylindrical shank (4.00 mm) for standard collet and chuck compatibility
• Tapered web configuration reduces walking and improves point stability
• Built to DIN 6537K specification for consistent dimensional conformance

Compatibility

Designed as an OEM-style replacement and standard production micro drill for CNC machining centers and drill presses accepting a 4.00 mm straight-cylindrical shank, within the KENNAMETAL Series B051A-CPG product line.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully into a collet or precision drill chuck, ensuring runout is within the tolerance required for the application before engaging the spindle. Power down and lock out the machine before changing tooling. Do not exceed the 6.00 mm maximum drilling depth rating, and always verify coolant flow is active when using the through-coolant channel to prevent premature tool failure.