Seco 10068956 Milling Insert SPKT140523TN-M14 F40M Carbide

Product Description

The SECO 10068956 is a solid carbide milling insert carrying the manufacturer designation SPKT140523TN-M14 in the F40M grade. It is a square-profile, single-sided indexable insert designed for high feed rate milling operations in metal-cutting applications. The insert features a PVD-applied TiAlN and TiN coating over a fine-grain carbide substrate, producing a hard, wear-resistant cutting edge suited to demanding machining conditions. Key dimensions include a 14.00 mm inscribed circle, a thickness of 5.56 mm, and a corner radius of 2.30 mm. With four cutting edges and a positive rake angle of 13 degrees, this insert is used by machinists and CNC tooling technicians in production milling environments.

This insert is intended for use in face milling, high feed milling, and ramping operations on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The M14 chip breaker geometry is optimized for moderate to heavy chip loads on these material groups. It is held in the cutter body by screw clamping and is compatible with the R217.21-SP14 and R220.21-SP14 cutter series. Applications range from roughing passes on carbon steel to finishing cuts on cast iron and titanium alloys in aerospace, automotive, and general machining environments.

Key Features

• Solid carbide construction with fine-grain substrate for edge toughness and wear resistance
• PVD-applied TiAlN and TiN dual coating for thermal stability and extended tool life
• Square insert shape with 4 usable cutting edges per insert
• High feed rate cutting edge style for aggressive material removal rates
• Positive rake geometry (13-degree rake angle) reduces cutting forces
• M14 chip breaker geometry suited for steel, cast iron, superalloys, and titanium
• Neutral hand orientation for flexible cutter body positioning

Compatibility

Compatible with R217.21-SP14 and R220.21-SP14 cutter series per manufacturer specifications. Insert conforms to ANSI and ISO code SPKT140523TN-M14 and belongs to the SPKT-14 series. Screw-held mounting method; confirm pocket geometry and screw torque requirements with the cutter body documentation before installation.

Installation Notes

Installation is performed by qualified CNC machinists or tooling technicians. Ensure the milling machine spindle is fully stopped and locked out before indexing or replacing inserts. Use the correct torx or hex key for the clamping screw and follow the cutter body manufacturer torque specification — do not estimate. Inspect the insert pocket seating surface for chips or debris before seating a new insert, as contamination causes premature edge failure and poor surface finish.