Seco 02825917 Pcbn Turning Insert Ccgw 3/8 Inch Ic

Product Description

The SECO 02825917 is a polycrystalline cubic boron nitride (PCBN) turning insert in the CCGW style, designed for high-hardness and interrupted-cut machining applications. It carries an 80-degree diamond shape with a flat-top chip breaker and a positive rake geometry. The insert features a chamfered and honed cutting edge, an inscribed circle of 0.375 inches, and a corner radius of 0.0157 inches. With two cutting edges and a screw-holding method, it is suited for use on CNC turning centers and boring machines where tight tolerances and tool life on hard materials are priorities. Machinists and tooling specialists working in precision turning operations select this insert for its uncoated PCBN substrate and multi-use capability.

This insert is intended for machining hard materials including hardened steels, as well as super-alloys and titanium. Typical applications include external and internal turning, facing, and boring operations where conventional carbide inserts fall short due to workpiece hardness or thermal demands. The flat-top geometry and chamfered cutting edge help manage heat and edge integrity during continuous and light interrupted cuts. It is commonly used in production and job-shop environments where consistent surface finish on hardened components is required.

Key Features

• PCBN substrate (uncoated) rated for hard material grades H01, H10, and H20
• 80-degree diamond insert shape with positive rake angle for reduced cutting forces
• Chamfered and honed cutting edge for improved edge strength on hard workpieces
• Flat-top chip breaker geometry suited for turning, facing, and boring
• Two cutting edges per insert for extended tool life per unit
• Screw-held mounting compatible with CCGW-style toolholders
• Conforms to ANSI and ISO standards; ISO code CCGW09T304S-01020-L1-B

Compatibility

Designed for use in CCGW-style screw-clamp toolholders compatible with the CCGW 32.51 insert size. Suitable for turning, facing, and boring operations on hard materials and super-alloys including titanium. Verified compatible toolholder selection should reference the CCGW insert style and 3/8-inch inscribed circle sizing.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or indexing the insert. Use the correct torx or hex key to secure the clamping screw to the toolholder manufacturer's specified procedure without overtightening. Inspect the insert seat and clamping pocket for chips or debris before seating to ensure proper insert contact and avoid edge chipping on first pass.