Seco 00039918 Milling Insert H25 Solid Carbide Uncoated

Product Description

The SECO 00039918 is a solid carbide milling insert with ANSI and ISO designation XOEX180631FR-E10, designed for face and shoulder milling operations in metalworking applications. Manufactured in grade H25 from micrograin solid carbide, this insert features an uncoated bright finish, a positive rake angle of 29 degrees, and a sharp cutting edge style. With a 15-degree relief angle and two cutting edges per insert, it is engineered for efficient chip formation and dimensional accuracy in demanding milling cycles. Licensed machinists and CNC operators typically specify this insert for non-ferrous metal and superalloy milling work.

This insert is intended for milling non-ferrous metals and superalloys including titanium, where sharp cutting geometry and uncoated micrograin carbide deliver clean surface finishes and reduced built-up edge. It fits compatible cutter bodies in the R217.69-18 and R220.69-18 series and is held in place by a screw-type clamping method. The parallelogram insert shape and right-hand cutting orientation suit standard climb and conventional milling setups on CNC machining centers and manual knee mills operating within the insert depth-of-cut envelope.

Key Features

• Micrograin solid carbide construction in H25 grade for wear resistance in non-ferrous and superalloy applications
• Uncoated bright finish reduces material adhesion when machining aluminum, copper, and titanium alloys
• Positive rake angle (29 degrees) and sharp cutting edge style minimize cutting forces
• Maximum depth of cut of 0.6693 inches and effective cutting edge length of 0.6693 inches
• Corner radius of 0.1220 inches improves surface finish and insert corner durability
• E10 chip breaker geometry supports controlled chip evacuation at varied feed rates
• Single-sided, right-hand insert with two cutting edges per piece

Compatibility

Compatible with SECO cutter series R217.69-18 and R220.69-18. Insert is screw-held and sized within the 18-series XOEX insert family (inscribed circle range 0.4000 to 0.5000 inches, length range 0.6500 to 0.7000 inches, thickness range 0.2500 to 0.3500 inches).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the spindle is fully stopped and locked out before seating or removing inserts. Use the correct torque screwdriver specified by the cutter body manufacturer to secure the clamping screw — do not overtighten, as micrograin carbide inserts are brittle and susceptible to fracture from improper seating force. Inspect the pocket seat and screw for debris or damage before installing a new insert.