Sandvik Coromant 5755285 Turning Insert Coroturn 111

Product Description

The SANDVIK COROMANT 5755285 is a solid carbide, uncoated triangular turning insert designed for precision external and internal turning operations on CNC lathes and turning centers. Belonging to the CoroTurn 111 series, this insert carries grade H13A with a KM chip breaker geometry suited for roughing and medium machining passes. The insert measures 9.90 mm in length with an inscribed circle of 0.2188 inches and a corner radius of 0.0157 inches. Its 60-degree included angle and positive side clearance (11-degree relief angle) support efficient chip evacuation and reduced cutting forces. Installation and tool selection are handled by machinists, tooling engineers, and CNC operators in production and job-shop environments.

This insert is rated for use on cast iron, aluminum and non-ferrous metals, and special or super alloys, spanning primary workpiece material codes P, K, N, and S. The H13A grade delivers high wear resistance with moderate toughness across these material groups, making it applicable in both production turning and general-purpose machining scenarios. It is held in place via a screw-clamp method and fits toolholders designed for the TPMT insert style with the corresponding pocket geometry. ISO code for this insert is TPMT090204KMH13A and ANSI code is TPMT1.81.51.

Key Features

• Solid carbide H13A grade with bright uncoated finish for high wear resistance in non-ferrous and cast iron applications
• KM chip breaker geometry supports roughing and medium machining cuts with a maximum depth of cut of 0.3740 inches (9.50 mm)
• 60-degree triangular insert shape (T) with positive clearance for reduced cutting forces and improved tool life
• Neutral hand orientation allows use in both right-hand and left-hand toolholder configurations
• Screw-clamp insert holding method provides rigid, repeatable seating in compatible TPMT-style toolholders
• Covers primary workpiece material codes P, K, N, and S for broad material-group versatility

Compatibility

Designed for use with TPMT-style screw-clamp toolholders compatible with the CoroTurn 111 series. ISO insert code TPMT090204 and ANSI code TPMT1.81.51 govern toolholder pocket matching. Verify toolholder pocket geometry and insert seating dimensions before installation.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and de-energize the machine spindle before changing inserts. Use the appropriate Torx or hex key to seat the clamping screw without over-driving, as specified by the toolholder manufacturer. Inspect the insert pocket for chips or debris before seating the new insert to ensure proper contact and runout accuracy.