Kennametal 4150183 Drill Bit Size 29 Solid Carbide 140 Deg

Product Description

The KENNAMETAL 4150183 is a stub-length (screw machine length) solid carbide drill bit designed for precision hole-making in demanding production environments. Built to DIN 6537K standards, this Size 29 (0.1360 inch) bit features a 140-degree point angle that promotes accurate entry and reduces thrust force in hard or abrasive workpiece materials. The TiN-coated tip extends edge life under high-cycle conditions. With a 2-flute regular spiral geometry and a tapered web configuration, chip evacuation stays consistent across the 0.7874-inch flute length. Machinists and tool-and-die professionals specify this series for short-hole drilling where rigidity and dimensional accuracy are critical.

This drill bit is suited for CNC machining centers, drill presses, and screw machines operating on ferrous metals, hardened steels, cast iron, and similar materials where solid carbide tooling is preferred over high-speed steel. The straight cylindrical shank measures 0.2362 inches in diameter and 1.4173 inches in length, providing positive grip in standard collet chucks and drill holders. Its stub-length geometry minimizes deflection in short-reach applications. Series B041A-CPG is specified for production drilling where consistent hole tolerances and tool life are required across high-volume runs.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• 140-degree point angle reduces thrust and improves entry accuracy
• TiN coating on tip extends cutting-edge life under repeat-cycle conditions
• 2-flute regular spiral with tapered web promotes efficient chip flow
• Stub-length design maximizes stiffness and minimizes deflection
• Diameter tolerance of -0.0005 to 0.0000 inches ensures consistent hole sizing
• Conforms to DIN 6537K specification for standardized dimensional control

Compatibility

Designed as an OEM-style replacement and production tooling option within the KENNAMETAL Series B041A-CPG screw machine length drill line. Compatible with standard straight-shank collet chucks and drill holders accepting a 0.2362-inch shank diameter.

Installation Notes

Installation and tool changes should be performed by qualified machinists following applicable machine lockout and energy-isolation procedures before handling rotating tooling. Ensure the collet or chuck is clean and undamaged before seating the straight shank to maintain runout tolerances. Do not exceed the maximum drilling depth of 0.5512 inches per pass without confirming chip clearance and coolant strategy for the specific workpiece material. Refer to KENNAMETAL cutting data recommendations and shop-floor speeds-and-feeds guidelines for optimal tool life.