Sumitomo 14HA978 Milling Insert ACP200 Solid Carbide Semt

Product Description

The SUMITOMO 14HA978 is a solid carbide milling insert designed for high-performance metal cutting in indexable milling applications. Manufactured to the ACP200 grade with a PVD coating process, this insert delivers wear resistance and edge retention suited for demanding cutting conditions. It features a square SEMT insert style with a 20-degree relief angle and an H chip breaker geometry. The inscribed circle measures 0.5 inches, thickness is 0.19 inches, and the cutting edge effective length is 0.528 inches. Installed by machining professionals and tool room technicians, this insert fits directly into compatible WGX cutter bodies.

This insert is intended for milling stainless steel and steel workpieces in both production and job shop environments. The SEMT style and H chip breaker geometry make it well suited for face milling and shoulder milling operations where controlled chip evacuation and edge stability are required. The ACP200 PVD-coated grade is formulated for primary workpiece material codes M and P, covering a broad range of steel and stainless steel alloys commonly encountered in industrial machining. Compatible with the WGX cutter series.

Key Features

• ACP200 manufacturer grade with PVD coating for wear resistance on steel and stainless steel
• Square SEMT insert style with 20-degree relief angle for positive cutting action
• H chip breaker geometry supports controlled chip formation during milling
• Solid carbide construction provides rigidity and thermal stability at the cutting edge
• Cutting edge effective length of 0.528 inches with inscribed circle of 0.5 inches
• Compatible with WGX cutter series for direct OEM-style replacement

Compatibility

Designed for use with the WGX cutter series. Primary workpiece material codes M and P cover stainless steel and steel. Insert size code 13, size designation 13T3.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the spindle before seating or replacing inserts. Use the correct torx or hex key as specified by the cutter body manufacturer when torquing insert screws. Inspect the pocket and clamping screw for damage before installing a new insert to ensure proper seating and runout.