Kennametal 4149202 Solid Carbide Jobber Drill 4.50 Mm

Product Description

The KENNAMETAL 4149202 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding production environments. The 4.50 mm diameter bit features a 140-degree point angle optimized for self-centering entry and reduced thrust, paired with a multilayer TiAlN coating that extends tool life in abrasive and heat-intensive applications. With a 74.00 mm overall length and a tapered web configuration, this drill delivers rigidity and chip evacuation efficiency suited to CNC machining centers and production drilling fixtures. It is installed by machinists and tooling professionals in metal fabrication, job shop, and precision manufacturing settings.

This drill is intended for use in steel, stainless steel, cast iron, aluminum, and non-ferrous materials, covering a wide range of production drilling applications. The 5xD flute-to-diameter ratio and right-hand spiral flute geometry support consistent chip removal at moderate to high feed rates. Coolant-through capability allows internal coolant delivery directly to the cutting zone, making it well suited for deep-hole drilling cycles where heat buildup and chip packing are primary concerns. The straight cylindrical shank accommodates standard drill chucks and hydraulic toolholders.

Key Features

• Solid carbide construction for superior rigidity and wear resistance versus high-speed steel
• Multilayer TiAlN coating for extended tool life in high-temperature cutting conditions
• 140-degree point angle reduces thrust force and improves centering on entry
• Coolant-through design delivers cutting fluid directly to the drill tip for heat control
• Tapered web configuration enhances chip flow and reduces walking on flat surfaces
• Conforms to DIN 6537K specification for consistent dimensional standards

Compatibility

Designed for use in steel, stainless steel, cast iron, aluminum, and non-ferrous workpiece materials. Fits standard drill chucks and toolholders accepting a 6 mm straight cylindrical shank. Suitable for use in CNC machining centers and production drilling equipment with internal coolant capability.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the machine in a full stop and lockout-tagout procedures applied. Ensure the shank seating depth in the toolholder meets the toolholder manufacturer minimum engagement requirement before running. Verify coolant-through pressure compatibility with your spindle system before engaging internal coolant flow. Do not run this tool in hand-held drilling applications.