WIDIA Square Turning Insert: SNMG643RH

The WIDIA SNMG643RH / SNMG190612RH is a square indexable turning insert used for general-purpose turning, facing, and profiling on steel, stainless steel, and cast iron workpieces. It is common in automotive, oil and gas, and general machining applications where a 90-degree approach angle and strong cutting edge are required.

This WIDIA square turning insert carries two designations: SNMG643RH and SNMG190612RH, with manufacturer part number 4171722. It is a square (S) indexable insert designed for turning operations. The insert is available in both inch (SNMG643RH) and metric (SNMG190612RH) sizing conventions.

You can source WIDIA SNMG643RH / SNMG190612RH inserts worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time; we supply genuine WIDIA inserts to customers across multiple industries.

To select the correct WIDIA turning insert, match the insert shape (square), size (SNMG643RH or SNMG190612RH), and grade to your workpiece material and cutting conditions. Consider the required approach angle, depth of cut, and feed rate. For general turning of steel and cast iron, the SNMG geometry with a chipbreaker is a common choice.