Sandvik Coromant 5755225 Turning Insert TR-DC1308-M 1115

Product Description

The SANDVIK COROMANT 5755225 is a solid carbide turning insert carrying ISO code TR-DC1308-M 1115, designed for precision external turning operations on difficult-to-machine materials. Manufactured under the CoroTurn TR series, this insert features a TiAlN and AlCr2O3 PVD coating applied over a carbide substrate, providing heat resistance and edge stability at cutting speeds typical of stainless steel and superalloy work. The insert geometry is neutral-hand with a diamond (60-degree) shape, a 1/32-inch corner radius, and an 11 mm inscribed circle. It is screw-held and sized for repeatable indexing in compatible toolholders. Licensed machinists and CNC operators in production and job-shop environments are the primary users.

This insert is engineered for primary use in stainless steel (ISO M) applications and is also rated for secondary use in superalloys and titanium (ISO S). It is well suited to finishing and semi-finishing passes where edge integrity and surface finish consistency are critical. The M chip breaker geometry manages chip control in these tough materials. Typical installation environments include CNC turning centers and manual lathes where screw-clamped insert toolholders are used. The CoroTurn TR series designation guides proper toolholder selection.

Key Features

• TiAlN and AlCr2O3 PVD coating for thermal resistance and wear life in stainless and superalloy cutting
• Diamond (T) insert shape with 60-degree included angle for versatile approach angles
• M chip breaker geometry optimized for stainless steel chip control
• Screw-clamped insert holding for secure, repeatable seating
• 2 cutting edges per insert for cost-efficient indexing
• Neutral hand orientation for flexible toolholder compatibility

Compatibility

Designed for use in CoroTurn TR series screw-clamped toolholders that accept a TR-DC1308 insert style. Primary workpiece material compatibility is stainless steel (ISO M); secondary compatibility includes superalloys and titanium (ISO S). Consult the ISO code TR-DC1308-M 1115 when matching to a toolholder or insert seat specification.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Before indexing or replacing inserts, confirm the machine spindle is fully stopped and all power is locked out per shop safety procedures. Use the manufacturer-specified torque driver for the clamping screw to ensure proper seating without cracking the insert. Inspect the insert pocket and seating surfaces for chips or debris before installing a fresh insert to prevent premature edge failure.