Kennametal 5550795 Milling Insert KCPM40 Hexagon Carbide

Product Description

The KENNAMETAL 5550795 is a solid carbide milling insert carrying the HNPJ0905ANSNGD ISO designation and KCPM40 manufacturer grade. It features a hexagon insert shape with 12 cutting edges and a double-sided configuration, maximizing tool life between index cycles. The insert is PVD-coated with a TiAlN and AlCrN multilayer finish, providing heat and oxidation resistance during aggressive milling passes. A 0.047-inch corner radius and chamfered, honed cutting edge style help control entry forces and reduce chipping. At 0.219 inches thick and 0.625 inches inscribed circle diameter, this insert is sized for the Dodeka cutter series. Neutral hand orientation suits a range of toolholder setups. A licensed machinist or CNC programmer typically specifies and installs this insert.

This insert is designed for milling steel, stainless steel, superalloys, and titanium — material application codes P, M, and S. It fits into the KENNAMETAL Dodeka cutter series, which uses the HNPJ series insert form with screw-type insert holding. Maximum depth of cut reaches 0.505 inches, making it applicable to both roughing and semi-finishing operations on ferrous and high-temp alloy workpieces. The negative rake geometry and GD chip breaker work together to manage chip formation and cutting forces across these demanding material groups.

Key Features

• KCPM40 grade with PVD-applied TiAlN and AlCrN coating for heat and wear resistance in steel and superalloy milling
• 12 cutting edges on a double-sided hexagon insert for extended tool economy
• 0.047-inch (3/64 inch) corner radius with chamfered and honed edge preparation
• Maximum depth of cut of 0.505 inches suits roughing and semi-finishing passes
• Neutral hand, negative rake geometry compatible with Dodeka series cutter bodies
• Conforms to both ANSI (HNPJ535ANSNGD) and ISO (HNPJ0905ANSNGD) standards

Compatibility

Designed for use in KENNAMETAL Dodeka series milling cutter bodies that accept HNPJ-style inserts with screw-type holding. Conforms to ANSI code HNPJ535ANSNGD and ISO code HNPJ0905ANSNGD.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Ensure the cutter body is removed from the spindle and the machine is powered down and locked out before handling inserts. Use the correct torx or hex key specified by the cutter body manufacturer when seating the clamping screw — do not over-torque. Inspect the pocket seat and screw threads for debris or damage before seating a new insert.