Kennametal 6371056 Replaceable Tip Drill 11mm KCMS15 Altin

Product Description

The KENNAMETAL 6371056 is a carbide replaceable tip drill designed for precision hole-making in stainless steel and other difficult-to-machine materials. Built to the KTFST series standard, it carries the KCMS15 manufacturer grade with a fine-grain solid carbide tip and a PVD-applied AlTiN coating that extends tool life under high-heat cutting conditions. The drill features a 140-degree included point angle, a 2-flute helical configuration with 2-margin geometry, and through-coolant capability to manage chip evacuation and heat at the cutting zone. It is sized at 11mm cutting diameter and suits shops running tight-tolerance drilling operations on CNC machining centers.

This replaceable tip drill is suited to production drilling applications in stainless steel (ISO material group M) where consistent hole quality and reduced tooling cost per hole are priorities. The HPL insert geometry and standard spiral type make it appropriate for drilling inclined exits, stacked plates, and other interrupted or challenging entry and exit conditions. The clamp-style insert holding method allows tip changes without removing the drill body from the spindle, reducing changeover time in high-cycle environments. Typical users include CNC machinists and toolroom technicians in aerospace, medical device, and general metalworking shops.

Key Features

• 11mm cutting diameter with 140-degree drill point angle for clean entry and reduced thrust
• Fine-grain solid carbide KCMS15 grade tip with PVD AlTiN coating for heat and wear resistance
• Through-coolant design channels fluid directly to the cutting edge for effective chip flushing
• 2-flute helical geometry with 2-margin configuration supports hole straightness and surface finish
• Clamp-style replaceable tip allows fast indexing without disturbing tool length offset
• Rated for inclined exit and stacked-plate drilling applications per manufacturer application data

Compatibility

Designed for use with KTFST series drill bodies accepting the L-size insert seat. Primary workpiece material is stainless steel (ISO group M). Compatible insert geometry is HPL as specified by the KTFST11000HPLM ISO number.

Installation Notes

Installation and tip changes should be performed by a qualified CNC machinist or toolroom technician with the spindle fully stopped and machine in a safe, locked-out state. Use the manufacturer-specified clamping torque procedure for the KTFST body when seating the replaceable tip to ensure proper tip retention. Through-coolant connections should be verified before operation to confirm unobstructed flow to the cutting edge. Refer to the machine tool and cutting tool manufacturer documentation for recommended speeds, feeds, and coolant pressure for the specific workpiece material.