WIDIA Round Milling Insert: RNGJ1204M0SMH (MPN 5123903)

The WIDIA RNGJ1204M0SMH is a round indexable milling insert designed for general-purpose machining of steel and cast iron. It is commonly used in face milling, slotting, and profiling operations on CNC and manual mills, providing smooth cutting action and good chip control in medium-duty applications.

The WIDIA RNGJ1204M0SMH insert has manufacturer part number 5123903 and is a round (R) indexable milling insert. It features a 12 mm inscribed circle diameter and 4.76 mm thickness, with a SMH grade for steel and cast iron. The insert uses a 0.8 mm corner radius and is designed for secure clamping in compatible tool holders.

You can source WIDIA RNGJ1204M0SMH 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 for production and maintenance needs.

Select the WIDIA RNGJ1204M0SMH for general-purpose milling of steel and cast iron at moderate speeds and feeds. Match the insert size (12 mm diameter) to your tool holder pocket. For harder materials or finishing, consider a different grade or geometry. Always verify compatibility with your cutter body and consult WIDIA's technical data for optimal parameters.