Kennametal 4149315 Jobber Drill 12mm Carbide 140 Deg

Product Description

The KENNAMETAL 4149315 is a solid carbide jobber-length drill designed for high-performance hole-making in ferrous and non-ferrous materials. It features a 12.00 mm diameter with a 140-degree point angle optimized for fast penetration and reduced thrust in harder materials. The multilayer TiAlN coating provides thermal resistance and extends tool life in demanding cutting environments. At 118.00 mm overall length with a 71.00 mm flute length and a 5xD flute-to-diameter ratio, this drill handles depth requirements common in precision machining and general metalworking. It is installed by machinists and tool-and-die professionals using CNC machining centers, drill presses, and manual mills.

This drill is suited for use in steel, stainless steel, cast iron, aluminum, and other non-ferrous materials. The right-hand spiral flute geometry and tapered web configuration support chip evacuation and center stability during entry. Its coolant-through design makes it compatible with through-spindle coolant systems, which improves performance at elevated cutting speeds and when drilling deeper holes. It conforms to DIN 6537K specification, making it a recognized standard for jobber-length solid carbide drills used in production and job-shop environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in abrasive and hard materials
• Multilayer TiAlN coating for thermal protection and extended tool life
• 140-degree point angle reduces thrust and improves self-centering on entry
• Coolant-through capability supports high-speed and deep-hole drilling applications
• Tapered web configuration aids chip evacuation and reduces walking
• Conforms to DIN 6537K specification for consistent dimensional accuracy

Compatibility

Designed for use in CNC machining centers and drill presses equipped with straight-shank tool holders accepting a 12.00 mm shank. Suitable for primary workpiece materials including steel, stainless steel, cast iron, aluminum, and non-ferrous alloys.

Installation Notes

Installation should be performed by a qualified machinist following standard toolroom procedures. Verify spindle taper and collet or chuck bore compatibility before mounting; ensure the shank is fully seated and the holder is torqued to the machine manufacturer's specification. Engage through-spindle coolant before initiating the cut when the system is available. Inspect the cutting edges for chipping or wear before each use, as carbide tooling can fail without visible pre-fracture warning signs.