Kennametal 4149189 Jobber Drill Wire 26 140 Deg Carbide

Product Description

The KENNAMETAL 4149189 is a solid carbide jobber-length drill bit sized to wire gauge No. 26 (0.1470 inches decimal equivalent) with a 140-degree split-point geometry and a multilayer TiAlN coating. It is designed for high-performance drilling in demanding production environments where tool life and hole quality are critical. The overall length is 2.598 inches (66.00 mm), and the straight cylindrical shank measures 0.4844 inches in diameter. The right-hand, regular spiral flute configuration provides efficient chip evacuation. This drill is intended for use by machinists, toolroom technicians, and manufacturing professionals running CNC or manual drilling operations.

The 4149189 is rated for primary workpiece materials including steel, stainless steel, cast iron, aluminum, and other non-ferrous alloys. The coolant-through design supports internal coolant delivery, making it well suited for deep-hole drilling applications in production settings where heat management is a priority. With a flute-to-diameter ratio of 5xD and a maximum drilling depth of 0.906 inches (23.00 mm), this drill is appropriate for through-hole and blind-hole operations in tight-tolerance components. It conforms to DIN 6537K specification, making it a recognized standard in precision metalworking shops.

Key Features

• Solid carbide construction for rigidity and extended tool life in hard and abrasive workpiece materials
• Multilayer TiAlN coating reduces heat buildup and improves wear resistance at high cutting speeds
• 140-degree point angle with standard point type for accurate self-centering entry and reduced thrust
• Coolant-through capability supports internal coolant or air delivery for deep-hole applications
• Regular spiral flute with tapered web configuration promotes efficient chip removal
• Conforms to DIN 6537K specification for consistent dimensional and performance standards

Compatibility

Designed for use in CNC machining centers and drill presses equipped with straight-shank toolholders or collet chucks accepting a 0.4844-inch shank diameter. Suitable for steel, stainless steel, cast iron, aluminum, and non-ferrous workpiece materials as specified by the manufacturer.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Ensure the tool holder or collet is clean and properly torqued before operation to prevent runout that can chip carbide. Verify spindle speed and feed rate settings are appropriate for the workpiece material and drill diameter before engaging the cut. Handle solid carbide tooling carefully to avoid edge chipping from contact with hard surfaces during storage or setup.