Sandvik Coromant 5745388 Milling Insert K20W Carbide

Product Description

The SANDVIK COROMANT 5745388 is a double-sided, square-shaped solid carbide milling insert designed for use in R365-series face and shoulder milling cutters. It carries a K20W manufacturer grade and a multilayer CVD coating of TiCrN, Al2O3, and TiN, which provides wear resistance and thermal stability during interrupted and continuous cuts. The insert measures 15.00 mm inscribed circle with a 5.66 mm thickness and features 8 cutting edges, a 0.30 mm corner radius, and a negative rake geometry. It is held in the cutter body by a screw-clamp method and is suited for right-hand cutting operations.

This insert is engineered primarily for machining cast iron workpiece materials, matching the K20 material grade classification. It fits production environments where consistent tool life and predictable performance on gray, ductile, or compacted graphite cast iron are required. The KM chip breaker geometry is optimized for controlled chip formation and reduced cutting forces at moderate to aggressive depths of cut up to 6.00 mm. It is appropriate for both light finishing and semi-finishing passes in milling operations on machining centers and CNC mills.

Key Features

• K20W grade solid carbide substrate with CVD-applied TiCrN, Al2O3, and TiN multilayer coating for extended wear resistance
• Double-sided insert with 8 usable cutting edges, reducing cost per edge
• Square insert shape (R365 series, ANSI and ISO code R365-1505ZNE-KM K20W) with 90-degree included angle
• KM chip breaker optimized for cast iron at depths of cut up to 6.00 mm
• 0.30 mm corner radius for corner-rounded edge style and controlled surface finish
• Negative rake angle with 0-degree relief angle; right-hand cutting orientation

Compatibility

Designed for use with Sandvik Coromant R365-series milling cutter bodies. ANSI and ISO designation: R365-1505ZNE-KM K20W. Insert size code 1505 with a 0.1811-inch hole diameter for screw-clamp mounting.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the milling cutter body is removed from the spindle or the machine is fully locked out before seating or replacing inserts. Use the manufacturer-specified torx or hex key to secure the clamping screw without over-torquing. Inspect the pocket seat and clamping screw for wear or debris before installing a fresh cutting edge.