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These are Carboloy indexable caroffere inserts designed specifically for on-edge grooving or threading operations on metalworking machinery like lathes or CNC mills. [1, 2] What Exactly Do They Do? Function: The TNMC 32 NGR W 894 code specifies that these are triangular, right-hand, \"on-edge\" indexable inserts. They are held vertically (tangentially) in a specialized tool holder, which provides high rigidity for cutting precise internal or external grooves, paths, or threads into metals. [1, 2] Dimensions & Spec: The \"W 894\" indicates a 0.094-inch cutting width (roughly 3/32\"). It features a 3/8\" inscribed circle (IC) and a 1/8\" thickness. [1, 2] Material/Grade: The label notes Grade 883, which is a highly reliable, general-purpose uncoated submicron caroffere grade traditionally used by Carboloy for machining cast iron, non-ferrous materials, and high-temperature alloy steels. [1, 2] 1 box = 10 inserts 1 box = 50$
