Kennametal 4151636 Micro Drill Bit 1.50mm Carbide Tialn

Product Description

The KENNAMETAL 4151636 is a solid carbide micro drill bit designed for precise small-diameter drilling in demanding machining applications. With a 1.50 mm (0.0591 inches) cutting diameter and a 140-degree drill point angle, this bit delivers clean entry geometry suited for hard and abrasive workpiece materials. The TiAlN coating improves heat resistance and extends tool life in dry or semi-dry cutting conditions. At 58.00 mm overall length with a 4.00 mm straight-cylindrical shank, it integrates with standard toolholders used in CNC machining centers and drill presses. Machinists and toolroom technicians are the primary users of this bit.

This drill bit is built for precision hole-making in metals, composites, and other hard materials where small-diameter accuracy is critical. The 9.00 mm spiral flute length and 6.00 mm maximum drilling depth make it suited for shallow through-holes and blind holes in workpieces requiring tight positional tolerances. The right-hand cutting direction is standard for conventional spindle rotation on CNC and manual equipment. It belongs to the KENNAMETAL Series B041A-CPG and conforms to DIN 6537K specification, making it a recognized standard-geometry tool for industrial production and toolroom environments.

Key Features

• 1.50 mm cutting diameter with a diameter tolerance of -0.014 to 0.000 mm for tight hole accuracy
• 140-degree standard point angle reduces thrust force on entry
• TiAlN coating provides thermal resistance for extended tool life in high-speed applications
• Solid carbide construction delivers rigidity and wear resistance in hard materials
• Tapered web configuration adds strength at the drill core
• Straight-cylindrical 4.00 mm shank fits standard collet and toolholder systems
• Conforms to DIN 6537K specification for consistent geometry and interchangeability

Compatibility

Designed as a standard-geometry replacement or production drill for CNC machining centers, drill presses, and multi-spindle equipment accepting a 4.00 mm straight-cylindrical shank. Belongs to KENNAMETAL Series B041A-CPG and meets DIN 6537K specification.

Installation Notes

Installation is performed by machinists or toolroom technicians. Secure the shank fully in a collet or drill chuck rated for the shank diameter before operating. Verify spindle speed and feed rate are appropriate for the workpiece material and hole depth before engaging the cut. Coolant-through is not supported on this tool; use external coolant or dry cutting as required by the application.