Kennametal 4150216 Screw Machine Drill Bit 5.40mm Carbide

Product Description

The KENNAMETAL 4150216 is a screw machine length (stub) drill bit engineered for precision drilling in metalworking and machining applications. Built from solid carbide and coated with a multilayer TiAlN finish at the tip, this bit delivers hardness and heat resistance suited for high-speed or production drilling. It features a 140-degree standard point angle for reduced thrust and cleaner entry, a 5.40 mm cutting diameter, and a right-hand spiral flute configuration. With an overall length of 66.00 mm and a straight cylindrical shank, it fits standard drill chucks and tool holders. Machinists and tool-and-die professionals are the primary users of this type of bit.

This drill bit is designed for stub-length drilling operations where rigidity and minimal deflection are priorities. The 3xD flute-to-diameter ratio and tapered web configuration make it well suited for through-hole and blind-hole work in ferrous metals, alloys, and similar hard materials on CNC machining centers, drill presses, and screw machines. The Series B041A-CPG designation places it within a defined family of solid carbide stub drills conforming to DIN 6537K specifications.

Key Features

• Solid carbide construction for rigidity and long tool life in hard-material drilling
• TiAlN multilayer coating at tip reduces heat buildup and extends cutting edge life
• 140-degree point angle lowers entry thrust and improves hole accuracy
• Stub length design minimizes deflection in short-reach drilling setups
• Straight cylindrical shank fits standard collets and drill chucks without modification
• Conforms to DIN 6537K specification for consistent dimensional tolerances

Compatibility

Designed as an OEM-style replacement and standard-production drill bit for use in CNC machining centers, screw machines, and drill presses accepting a 6.00 mm straight shank. Fits within the DIN 6537K stub drill standard. Part of the KENNAMETAL Series B041A-CPG solid carbide drill family.

Installation Notes

Installation is performed by machinists or tool-room technicians. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the straight shank fully into the collet or chuck and verify runout is within acceptable limits before commencing drilling. Do not exceed the maximum recommended drilling depth of 20.00 mm for this stub-length configuration.