Kennametal 4149212 Solid Carbide Jobber Drill Wire 7

Product Description

The KENNAMETAL 4149212 is a solid carbide jobber-length drill bit sized to wire gauge No. 7 (0.2010 inches diameter) with a 140-degree split-point geometry and a multilayer TiAlN coating. It is designed for high-performance drilling in demanding materials including steel, stainless steel, cast iron, and aluminum. The straight cylindrical shank measures 0.1875 inches in diameter, and the overall length is 3.2283 inches (82.00 mm). With a regular spiral right-hand flute and a tapered web configuration, this drill is suited for precision hole-making in production environments. Licensed machinists, tool-and-die tradespeople, and CNC operators are the primary users.

This drill fits applications requiring tight-tolerance holes in ferrous and non-ferrous workpiece materials. The 5xD flute-to-diameter ratio and 1.7323-inch flute length support chip evacuation in deeper passes up to a maximum drilling depth of 1.3780 inches (35.00 mm). Coolant-through capability makes it effective in high-speed CNC machining operations where thermal management is critical. It conforms to DIN 6537K specification, making it appropriate for shops working to metric tooling standards alongside inch-based setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• Multilayer TiAlN coating for elevated heat resistance and extended tool life
• 140-degree point angle for reduced thrust and improved self-centering on entry
• Coolant-through design supports high-speed, deep-hole operations
• Right-hand cut, regular spiral flute with tapered web for efficient chip evacuation
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed as a high-performance OEM-style jobber drill for use in CNC machining centers and drill presses handling steel, stainless steel, cast iron, and aluminum or non-ferrous workpieces. Straight cylindrical shank is compatible with standard collet chucks and drill chucks accepting 0.1875-inch shank diameters.

Installation Notes

Installation and tool changes should be performed by qualified machinists or CNC operators with the machine in a full stop and locked-out state per OSHA lockout/tagout procedures. Ensure the chuck or collet is clean and free of chips before seating the shank. Do not use the drill beyond its rated maximum drilling depth of 1.3780 inches per pass without retracting to clear chips. Verify coolant lines are open and flow is confirmed before beginning coolant-through operations.