Osg 7814205 Milling Insert TPKT110308ER XP9020 Tialn

Product Description

The OSG 7814205 is a TPKT-style triangular milling insert coated with TiAlN via a PVD process and graded XP9020 for demanding cutting applications. It carries a positive rake angle of 11 degrees, a honed cutting edge, and a 0.80 mm corner radius for consistent surface finish. The insert measures 0.1252 inches thick with a 0.25-inch inscribed circle and delivers a maximum depth of cut of 0.4016 inches. Three cutting edges are available per insert, extending tool life before a changeover is needed. Screw-held and right-hand oriented, it fits into compatible milling toolholders in the 78PLDS series. Licensed machinists, toolroom operators, and production machining shops are the primary installers of this insert.

This insert is designed for milling operations in steel and cast iron as primary workpiece materials, with secondary suitability for stainless steel, non-ferrous metals, superalloys, titanium, and hard materials. It is well-suited to face milling, shoulder milling, and general-purpose milling setups where a positive-rake triangular geometry helps reduce cutting forces and heat generation. The XP9020 grade TiAlN coating supports higher cutting speeds and extended insert life in production environments where tool change frequency directly affects cycle time.

Key Features

• TiAlN coating applied via PVD process for thermal resistance and extended tool life
• XP9020 manufacturer grade suited for steel, cast iron, stainless steel, and hard materials
• Triangular (TPKT) insert shape with 60-degree included angle and three usable cutting edges
• Positive rake angle of 11 degrees with honed cutting edge style to reduce cutting forces
• 0.80 mm corner radius for consistent surface finish across a range of feed rates
• Screw-held, single-sided, right-hand insert compatible with 78PLDS series toolholders
• Conforms to ANSI and ISO standards under code TPKT110308ER

Compatibility

Designed as an OEM-style replacement milling insert for toolholders accepting TPKT110308ER geometry inserts within the 78PLDS series. Verify toolholder pocket specifications and insert seat dimensions before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Always power down the machine spindle and engage the axis locks before indexing or replacing inserts. Use the correct torque wrench for the clamping screw to avoid seat damage or insert cracking — refer to the toolholder manufacturer's clamping torque specification, not this insert's datasheet. Inspect the insert pocket and seating surface for chips or debris before seating the new insert.