Kennametal 4150195 Drill Bit Size 20 Solid Carbide 140 Deg

Product Description

The KENNAMETAL 4150195 is a solid carbide screw machine length drill bit designed for high-productivity short-hole drilling in metalworking and machining operations. It cuts a 0.1610 inch (wire size 20) diameter hole with a 140-degree standard point angle, which improves centering and reduces the need for a pilot hole on many materials. The TiAlN multilayer coating applied at the tip extends cutting-edge life in ferrous and hardened materials. With an overall length of 2.5984 inches (66.00 mm) and a stub flute length of 0.9449 inches (24.00 mm), this bit fits the compact reach requirements of screw machine and CNC drilling setups. A licensed machinist or tooling technician is the typical end user.

This drill bit is suited for production drilling in CNC machining centers, turret lathes, screw machines, and similar short-stroke drilling equipment. The stub length design minimizes deflection and runout in high-cycle applications. The straight cylindrical shank at 0.2362 inches (6.00 mm) diameter seats directly in standard collets and drill chucks without adapters. It is well-suited for drilling steel, cast iron, and similar materials where a rigid, short-flute geometry is preferred over jobber-length bits.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard or abrasive workpiece materials
• 140-degree point angle improves self-centering and reduces thrust force compared to standard 118-degree geometry
• TiAlN coating at the tip extends tool life in ferrous metals and moderately hardened steels
• Stub flute length of 0.9449 inches limits deflection in high-RPM, short-stroke drilling cycles
• Tapered web configuration adds core strength and supports aggressive feed rates
• Right-hand cutting spiral with regular flute geometry for efficient chip evacuation
• Conforms to DIN 6537K specification for dimensional consistency in tooling setups

Compatibility

Designed as a direct-fit tooling replacement within the KENNAMETAL Series B041A-CPG screw machine length drill family, suitable for use in any standard drill chuck or collet accepting a 0.2362 inch straight shank.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with cutting tool setup procedures. Ensure the machine spindle is fully stopped and locked out before mounting or changing the bit. Seat the straight shank fully and evenly in the collet or chuck to the recommended grip depth to prevent pullout under load. Avoid using this stub-length bit in deep-hole applications that exceed its rated maximum drilling depth of 0.6693 inches (17.00 mm).