SUMITOMO Triangle Turning Insert: TNMG321ESU
The SUMITOMO Triangle Turning Insert, model TNMG321ESU (also referenced as TNMG160304N-SU, MPN TNMG321ESU-AC8025P), is a Triangle (T) indexable turning insert. It is available in two size designations: TNMG321ESU and…
SKU 3G-OTH-323491
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Product Description
The SUMITOMO Triangle Turning Insert, model TNMG321ESU (also referenced as TNMG160304N-SU, MPN TNMG321ESU-AC8025P), is a Triangle (T) indexable turning insert. It is available in two size designations: TNMG321ESU and TNMG160304N-SU.
Frequently Asked Questions
What is the SUMITOMO TNMG321ESU turning insert used for?
The SUMITOMO TNMG321ESU is a triangle indexable turning insert for general turning, facing, and profiling operations on metal workpieces. It suits medium to finishing cuts in steel, stainless steel, and cast iron across industries like automotive, aerospace, and general machining.
What are the specifications of the SUMITOMO TNMG321ESU insert?
The SUMITOMO TNMG321ESU is a Triangle (T) indexable turning insert with size designations TNMG321ESU and TNMG160304N-SU. The manufacturer part number is TNMG321ESU-AC8025P. It is designed for use with appropriate tool holders and features a chipbreaker geometry for effective chip control.
Where to buy SUMITOMO TNMG321ESU turning inserts worldwide?
3G Electric supplies SUMITOMO TNMG321ESU turning inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this genuine SUMITOMO insert.
How to select the correct SUMITOMO TNMG321ESU insert for my application?
To select the correct SUMITOMO TNMG321ESU insert, match the insert size (TNMG321ESU or TNMG160304N-SU) to your tool holder pocket. Consider workpiece material, cutting speed, feed rate, and depth of cut. The AC8025P grade is optimized for steel and cast iron. Consult your tooling engineer for specific parameters.
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3G Electric supplies SUMITOMO triangle (t) indexable turning inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















