Sandvik Coromant 5751937 Turning Insert Tcmt Uf 1125

Product Description

The SANDVIK COROMANT 5751937 is a solid carbide turning insert in the CoroTurn 107 series, designed for external turning and profiling operations on CNC lathes and turning centers. The insert carries ISO designation TCMT 11 02 02-UF 1125 and features a PVD-applied TiAlN and AlCr2O3 dual-layer coating on grade 1125 carbide substrate. The triangular 60-degree geometry provides three usable cutting edges per insert. With a 0.2 mm corner radius, 1/4-inch inscribed circle, and UF chip breaker geometry, this insert is optimized for light finishing cuts and contour turning in steel and stainless steel. Machinists and CNC operators install this insert in compatible CoroTurn 107 toolholders using a screw-lock holding method.

This insert is suited for finishing and semi-finishing passes on workpieces including carbon steel, stainless steel, non-ferrous metals, superalloys, and titanium. The UF chip breaker geometry is intended for low feed rates and shallow depths of cut where controlled chip formation and surface finish are the primary objectives. Typical applications include shaft turning, bore profiling on lathes with live tooling, and contour passes on precision components in aerospace and general machining environments. The TCMT insert style and 7-degree relief angle provide clearance for profiling and taper turning operations.

Key Features

• PVD-coated TiAlN and AlCr2O3 dual-layer coating on grade 1125 carbide substrate for wear resistance in steel-family materials
• UF chip breaker geometry optimized for finishing cuts at low feed rates
• Three cutting edges per insert — triangular 60-degree included angle with TCMT insert style
• Screw-lock holding method (Clearance Code C, Tolerance Code M) for secure seating in CoroTurn 107 toolholders
• 0.2 mm corner radius (0.0079 inches) for fine surface finish and tight-radius profiling
• Neutral hand orientation for versatile mounting in right- or left-hand turning applications

Compatibility

Designed for use in CoroTurn 107 series toolholders accepting TCMT-style inserts with a 1/4-inch inscribed circle and screw-lock holding method. Primary workpiece material designation is P (Steel); secondary material codes include M (Stainless Steel), N (Non-Ferrous Metal), S (Superalloy), and P (Titanium) per ISO classification.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the spindle before indexing or replacing inserts. Use the correct Torx or hex key driver specified for the CoroTurn 107 screw-lock seat to avoid seat damage. Inspect the insert pocket and seating surface for chips or debris before seating the new insert, and verify insert orientation matches the programmed tool geometry offset before resuming cuts.