Sumitomo 1033W3M Turning Insert CNGG431ESUJ H1 Carbide

Product Description

The SUMITOMO 1033W3M is a solid carbide, uncoated turning insert in the CN series, designed for precision metal cutting on CNC and manual lathes. It carries the ANSI code CNGG431ESUJ and ISO code CNGG120404N-SUJ, featuring an 80-degree diamond insert shape with a negative rake geometry. The H1 manufacturer grade and ESUJ chip breaker make this insert well-suited for finishing and light cutting passes on non-ferrous workpiece materials. The uncoated carbide construction provides a sharp, consistent cutting edge without the thermal buildup associated with coated inserts. Licensed HVAC installers and machinists in precision turning applications will find this insert appropriate for tight-tolerance finishing work.

This insert is intended for turning operations on non-ferrous metals, including aluminum and copper alloys, where a sharp uncoated edge is preferred to minimize built-up edge. It fits into CNGG-style toolholders using a clamp and pin holding method. The neutral hand orientation makes it suitable for both left- and right-hand turning setups. It is typically used in production or job-shop environments where CNC lathe operators require consistent chip control on softer, non-ferrous materials.

Key Features

• Solid carbide, uncoated construction for sharp edge retention on non-ferrous metals
• 80-degree diamond insert shape (Shape Code C) with negative rake for stable cutting geometry
• ESUJ chip breaker designed for controlled chip formation during finishing cuts
• Neutral insert hand allows use in both left- and right-hand toolholder setups
• Clamp and pin holding method provides secure seating in compatible toolholders
• Compliant with ANSI and ISO 13399 standards for interchangeability and tool data exchange

Compatibility

Designed as an OEM-style replacement or direct-fit insert for CNGG-style turning toolholders that accept a 1/2-inch inscribed circle, 3/16-inch thick diamond insert with a clamp and pin holding method, per ANSI code CNGG431ESUJ.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician with the machine powered off and the spindle locked. Seat the insert fully into the toolholder pocket before engaging the clamp and pin mechanism. Do not overtighten the clamping screw beyond the toolholder manufacturer's specified torque. Inspect the insert seat and pocket for chips or debris before installation to ensure proper seating and cutting edge alignment.