Seco 02526663 Milling Insert Snhq 120704EL4-E05 H25 Carbide

Product Description

The SECO 02526663 is a solid carbide milling insert carrying ANSI/ISO designation SNHQ120704EL4-E05 and manufactured to grade H25 micrograin carbide. The insert features a square shape with a 90-degree included angle, four cutting edges, and a left-hand orientation. It measures 0.5000 inches in inscribed circle diameter and 0.2756 inches thick, with a corner radius of 0.0157 inches. The E05 chip breaker geometry and honed cutting edge style are suited to finishing and semi-finishing operations. This is an uncoated, bright-finish insert intended for use by machinists and tooling specialists on milling applications requiring precise edge geometry on difficult workpiece materials.

This insert is designed for milling non-ferrous metals and superalloys including titanium, corresponding to ISO material application codes N and S. It seats with a screw-holding method and carries a negative rake angle of 20 degrees with a 0.00-degree relief angle. The SECO SNHQ-12 series insert fits the 335.19-12 cutter series. Typical install scenarios include high-speed face milling, shoulder milling, and copy milling operations in aerospace, automotive, and precision machining environments where tool life consistency on difficult materials is a priority.

Key Features

• H25 micrograin solid carbide substrate — uncoated bright finish for non-ferrous and superalloy applications
• Four cutting edges on a single-sided square insert for cost-effective edge utilization
• E05 chip breaker geometry with honed cutting edge for controlled chip formation
• Left-hand insert orientation — verify cutter body hand before ordering
• Maximum depth of cut: 0.2441 inches
• Negative rake (20 degrees) design supports stable cutting forces in demanding milling operations

Compatibility

Compatible with the SECO 335.19-12 cutter series. Insert conforms to ANSI and ISO standards under code SNHQ120704EL4-E05. Verify cutter body series and hand designation before substitution.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Secure the insert using the designated screw-holding method; ensure the cutter body is fully de-energized and the spindle is locked before seating or replacing inserts. Confirm left-hand orientation matches the cutter body specification before torquing the clamping screw. Handle carbide inserts with care to avoid chipping the honed cutting edge prior to use.