Kennametal 4150298 Drill Bit 11mm Solid Carbide 140 Deg

Product Description

The KENNAMETAL 4150298 is a screw machine length (stub) drill bit engineered for demanding metal-cutting applications in production and job-shop environments. Built from solid carbide and coated with TiAlN at the tip, it delivers hardness and thermal resistance well beyond high-speed steel alternatives. The 140-degree point angle reduces thrust and promotes self-centering on entry. At 11.00 mm in diameter with a 102.00 mm overall length and a 55.00 mm flute length, this bit is designed for rigid, close-tolerance drilling where hole quality and repeatability matter. It is installed and operated by machinists, toolmakers, and CNC setup technicians.

This drill bit is suited for production drilling in steel, cast iron, stainless, and similar ferrous materials where a stub-length tool provides improved rigidity and reduced chatter. The straight cylindrical shank at 12.00 mm diameter fits standard toolholders and chucks without modification. The 3xD flute-to-diameter ratio and tapered web configuration support chip evacuation in short, interrupted, or through-hole applications. It is appropriate for use on CNC machining centers, drill presses, and turret lathes where consistent hole tolerance is required. Series B041A-CPG.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and hard materials
• TiAlN tip coating reduces heat buildup and extends tool life at higher surface speeds
• 140-degree point angle lowers entry thrust and improves self-centering performance
• Stub length design increases stiffness and minimizes deflection compared to jobber-length bits
• Straight cylindrical shank at 12.00 mm fits standard ER collets and drill chucks
• Meets DIN 6537K specification for dimensional and geometric consistency

Compatibility

Designed as a direct-fit replacement for stub-length solid carbide drill bits in the 11.00 mm to 13.50 mm diameter range per DIN 6537K. Fits any toolholder or chuck accepting a 12.00 mm straight cylindrical shank.

Installation Notes

Installation is performed by qualified machinists or CNC technicians. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the toolholder. Verify the shank seating depth and runout with a dial indicator before initiating a cut. Do not exceed the maximum recommended drilling depth of 40.00 mm without retracting to clear chips, as this is a non-coolant-through design.