Sandvik Coromant 5755825 Turning Insert VBMT333-UM 1115

Product Description

The SANDVIK COROMANT 5755825 is a solid carbide turning insert designed for precision metal-cutting operations on CNC lathes and turning centers. It carries the VBMT333-UM 1115 designation, indicating a 35-degree diamond shape, a neutral hand orientation, and the UM chip breaker geometry. The insert measures 0.6065 inches in length with a 3/8-inch inscribed circle and a 3/64-inch corner radius. The 1115 grade features a PVD-applied TiAlN and AlCr2O3 dual-layer coating engineered for heat resistance and edge stability. Licensed HVAC and industrial machinists, toolroom techs, and CNC operators install these inserts in production and job-shop turning applications.

This insert is optimized for turning stainless steel as its primary workpiece material, with secondary suitability for superalloys and titanium. The UM chip breaker geometry is specifically designed to manage the tough, stringy chips produced by these difficult-to-machine materials. It is suited for light to medium depth-of-cut passes where edge sharpness and chip control are critical. The CoroTurn 107 series uses a screw-clamping insert-holding method, making it compatible with CoroTurn 107 toolholders that accept VBMT-style inserts.

Key Features

• 35-degree diamond insert shape (Shape Code V) for accessibility in tight profiling and turning operations
• PVD-coated TiAlN and AlCr2O3 dual-layer finish for thermal resistance and extended tool life
• UM chip breaker geometry optimized for stainless steel, superalloys, and titanium
• 3/64-inch corner radius for a balance of edge strength and surface finish
• Neutral hand orientation for use in both right-hand and left-hand applications
• Screw-clamping insert-holding method for secure, repeatable seating in CoroTurn 107 toolholders

Compatibility

Designed for use in CoroTurn 107 series toolholders that accept VBMT-style inserts with a screw-clamping holding method. ISO designation is VBMT 16 04 12-UM 1115. Insert size code is 333. Primary workpiece material code M (stainless steel); secondary material code S (superalloy and titanium).

Installation Notes

Installation is performed by CNC operators or toolroom machinists. Power down and lock out the machine spindle before changing inserts. Seat the insert fully against the toolholder pocket locating surfaces before tightening the clamping screw to avoid insert shift under cutting loads. Inspect the pocket and screw for wear or damage before installing a new insert, as a damaged pocket can fracture carbide edges prematurely.