Pramet TNMG Series Lathe Insert for Use with MTJNR, 4.76mm Height, 93° Approach, 16.5mm Length

This is a double-sided negative turning insert. It features a triangular shape with an inscribed circle diametre of 9.525mm and a thickness of 4.76mm. The insert has a 1.2mm nose radius and is coated with MT-CVD for enhanced performance. Designed for fine to heavy machining of steels, this insert falls within the ISO range P05-P25.

• Double-sided design allows for efficient use and extended tool life
• Triangular shape provides versatility for various turning applications
• Coated with MT-CVD to enhance wear resistance and reduces friction during cutting

• Steel and cast steel (Steels with alloy content ≤ 10% and hardness < 45HRC)
• Cast iron (Castings of iron and carbon alloys with > 2% carbon content)
• Hardened materials (Engineering metals with hardness > 45HRC)

Yes, this insert is suitable for fine to heavy machining of steels.

The cutting conditions depend on the specific application and material, but generally follow the ISO guidelines for steel, cast iron, or hardened materials.

Yes, the T9315 coating provides excellent wear resistance, extending tool life.

Yes, it is compatible with various toolholders, including MTJN, PTTN, PTGN, DTFN, and PTFN.

The inscribed circle diametre is 9.525mm.

Turning Inserts

Breakdown of ISO Reference

Higher Number = Tougher / Resistant to Impact
Lower Number = Harder / Wear Resistant

TU5525 the New Universal Turning Grade

TU5525 is a truly universal tuning grade suitable for cutting Steel, Stainless Steel, Cast Iron and heat resistant Aaloys. There is no need to hold stock of a multitude of grades reducing the cost of inventory and time wasted changing inserts. One insert for almost all applications.

TP2135 a Tough Impact Resistant Grade

If insert breakage or chipping of the cutting edge is a problem TP2135 may be the answer. Some application do not offer the cutting edge a constant cutting surface whether from a non round part or holes in the part this constant impact on the cutting edge can lead to insert failing. TP2135 is designed to take higher impact loads giving a more secure cutting edge, suitable for cutting steel, stainless steel and heat resistant alloys.