Sandvik Coromant 5755394 Turning Insert VBGT331-UM 1105

Product Description

The SANDVIK COROMANT 5755394 is a solid carbide turning insert from the CoroTurn 107 series, designed for precision external turning operations on CNC lathes and turning centers. It carries a grade 1105 designation and is coated with TiAlN via a PVD process, providing wear resistance and thermal stability at the cutting edge. The insert features a 35-degree diamond shape (V) with a neutral hand orientation, a 3/8-inch inscribed circle, and a 1/64-inch corner radius (0.0156 inches). With two cutting edges and a screw-on holding method, it delivers consistent, repeatable performance in production turning environments.

This insert is suited for turning steel as its primary workpiece material, with secondary suitability for stainless steel, superalloys, and titanium. The UM chip breaker geometry is optimized for light to medium finishing cuts where chip control and surface finish are critical. It is typically installed by machinists and CNC operators in job shop, aerospace, and general manufacturing environments. The ISO designation for this insert is VBGT 16 04 04-UM 1105, which can be used to cross-reference equivalent inserts across tooling systems.

Key Features

• Grade 1105 solid carbide substrate with PVD TiAlN coating for extended tool life on steel and stainless steel
• 35-degree diamond insert shape (V) provides a sharp, low-force cutting geometry for finishing applications
• UM chip breaker geometry promotes reliable chip control in light to medium finishing cuts
• Two cutting edges per insert maximize cost efficiency in production turning
• Screw-on insert holding method ensures secure, repeatable seating in compatible toolholders
• PVD coating process preserves edge sharpness and maintains tight tolerances on finished surfaces

Compatibility

This insert is designed for use in CoroTurn 107 series toolholders that accept VBGT style inserts with a screw-on (clearance code B, tolerance code G) mounting configuration. The ISO code VBGT 16 04 04-UM 1105 can be used to identify compatible holders and equivalent replacements across tooling catalogs.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist with the machine in a powered-off and locked-out state per applicable machine tool safety procedures. Use the appropriate Torx or hex key specified for the CoroTurn 107 toolholder to seat the clamping screw without overtightening. Inspect the insert pocket and seating surfaces for chips or debris before seating a new insert. Always verify insert orientation and hand before resuming cutting operations.