Sandvik Coromant 5743873 Milling Insert H10 Solid Carbide

Product Description

The SANDVIK COROMANT 5743873 is a solid carbide milling insert engineered for precision material removal in demanding machining applications. Manufactured to the ANSI and ISO standard R245-12 T3 E-AL H10, this square-shaped insert features a positive rake angle of 15 degrees and a honed cutting edge style that promotes clean, consistent cuts. With four cutting edges and a right-hand orientation, it delivers efficient use in face milling operations. The bright, uncoated H10 grade and N10 material grade classification make it well suited for work in cast iron and non-ferrous metal materials. The insert is held in place by a screw-type clamping method and is designed as a single-sided insert.

This insert is designed for use in the R245 cutter series and is intended for face milling applications in CNC machining centers and milling machines across production and job shop environments. Its chip breaker designation is AL, which is optimized for light to moderate cutting conditions in cast iron and non-ferrous metals such as aluminum and copper alloys. With a maximum depth of cut of 0.2559 inches and an inscribed circle of 0.5276 inches, it fits standard R245 tooling bodies requiring 12-size inserts. Typical users include CNC machinists and tooling specialists working in metal fabrication, automotive, aerospace, and general manufacturing settings.

Key Features

• Solid carbide construction, H10 manufacturer grade with N10 material grade — uncoated, bright finish
• Square insert shape with 90-degree included angle and positive 15-degree rake for reduced cutting forces
• Four cutting edges with honed edge style for extended tool life in cast iron and non-ferrous metals
• AL chip breaker geometry suited for light to moderate cutting in non-ferrous and cast iron workpieces
• Screw-held, single-sided insert in right-hand orientation — compatible with R245 series cutter bodies
• Meets ANSI and ISO standards per code R245-12 T3 E-AL H10

Compatibility

Designed for use with R245 series cutter bodies requiring an insert size code of 12T3. Compatible with primary workpiece materials classified as cast iron (K) and non-ferrous metal (N). Fits tooling bodies accepting a hole diameter of 0.1614 inches and an inscribed circle in the range of 0.5100 to 0.6000 inches.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. The machine spindle must be fully stopped and the tool body secured before inserting or replacing inserts. Use the appropriate Torx or hex key as specified by the cutter body manufacturer to seat the screw-clamp securely without over-torquing the insert pocket. Inspect the insert pocket and seating surface for chips or debris before installation to ensure proper seating and accurate runout.