Hertel 1001356 Turning Insert SPG421 HT10 Solid Carbide

Product Description

The HERTEL 1001356 is a solid carbide turning insert in the SPG421 style, designed for use in metal-cutting lathe operations. Carrying manufacturer grade HT10 with an uncoated finish, this insert features a 90-degree square shape with a 0.5-inch inscribed circle and a 1/64-inch (0.016 inch) corner radius. The insert thickness measures 0.125 inches. The neutral hand orientation makes it suitable for straight turning applications. It belongs to the KENDEX series and is held in place using a clamp-style holding method. Machinists and CNC lathe operators install this insert in compatible toolholders for precision turning work across a range of workpiece materials.

This insert is rated for use on nonferrous metals and high-temperature alloys as the primary workpiece materials (Material Group N and S), with cast iron and stainless steel as secondary workpiece materials (Material Group K and M). The positive rake geometry and 11-degree relief angle support clean chip flow and reduced cutting forces, making it a practical choice for medium finishing and light roughing passes. Maximum depth of cut is 0.049 inches (1.25 mm). The C2 material grade positions this insert for general-purpose machining applications in production and job-shop environments.

Key Features

• Solid carbide, uncoated HT10 grade for consistent performance on nonferrous and specialty alloys
• 90-degree square insert shape (Shape Code S) with positive rake for reduced cutting force
• 0.5-inch inscribed circle with 0.016-inch corner radius for controlled surface finish
• 11-degree relief angle (Clearance Code P) reduces flank wear in light-to-medium cuts
• Clamp-style holding method for secure seating in compatible SPG-style toolholders
• Maximum depth of cut of 0.049 inches (1.25 mm) for finish and semi-finish passes

Compatibility

Designed for use in clamp-style toolholders accepting SPG-series square turning inserts with a 0.5-inch inscribed circle. Verify toolholder seat dimensions and insert pocket specifications before installation to confirm fit.

Installation Notes

This insert is installed by a machinist or CNC lathe operator. Power down and lock out the machine before seating or replacing any insert. Use the correct clamping screw torque per the toolholder manufacturer's specification and inspect the insert pocket for chips or debris before seating. Do not exceed the rated maximum depth of cut for this insert grade and style.