Seco 00007670 Turning Insert TNMG544-MR4-48 883 Carbide

Product Description

The SECO 00007670 is a solid carbide, uncoated turning insert designed for demanding metal removal operations on superalloys and titanium. It carries the ANSI insert code TNMG544 and ISO code TNMG270616, with a 60-degree triangular shape and a neutral hand orientation. The MR4 chip breaker geometry is engineered for roughing and medium machining applications, delivering a cutting edge style classified as T-Land. With a 5/8 inch (0.6250 inch) inscribed circle and a 1/16 inch (0.0630 inch) corner radius, this insert is sized for moderate-to-heavy depth-of-cut work. Licensed machinists, tool and die operators, and CNC turning center technicians are the primary installers of this insert.

This insert is suited for turning, facing, boring, and back turning operations on superalloys and titanium workpieces where high wear resistance through high toughness is required. The 883 grade targets S-category primary workpiece materials (superalloys and titanium) and also covers secondary material codes M, K, N, and H, making it a versatile option across multiple work materials. Negative rake and negative side clearance geometry support stable, controlled cuts at moderate-to-high feed rates. It is compatible with toolholders that accept clamp, pin, or lever lock insert holding methods.

Key Features

• TNMG triangular insert shape with 60-degree included angle and 6 cutting edges for extended tool life per insert
• MR4 chip breaker optimized for roughing and medium machining on superalloys and titanium
• Uncoated 883 grade carbide substrate — high wear resistance to high toughness (S10, S20, S30 material grades)
• Neutral hand orientation — compatible with both left-hand and right-hand toolholders
• Maximum depth of cut of 0.9291 inches supports substantial material removal per pass
• Multi-use geometry supports turning, facing, boring, and back turning in a single insert style

Compatibility

Compatible with toolholders designed for TNMG-style inserts using clamp, pin, or lever lock holding methods. Suits ANSI size code 544 and ISO size code 270616 toolholder pockets. Verify toolholder pocket geometry and clamping system before installation.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the appropriate torque wrench and manufacturer-specified clamping hardware for the toolholder type — do not overtighten clamp screws, as this can fracture the carbide substrate. Confirm insert seating and edge indexing before resuming cutting operations.