Walter Prototyp TC610-UNC7/8-W0-WJ30RC 7/8-9 UNC Carbide Thread Mill

This is a new Walter Prototyp TC610-UNC7/8-W0-WJ30RC solid carbide thread milling cutter designed for producing internal 7/8-9 UNC threads, as confirmed by the label which reads 'TPI 9 INT' — 9 threads per inch, internal application. The TC610 series uses Walter's WJ30RC carbide grade, a fine-grain tungsten carbide substrate with an advanced PVD coating optimized for thread milling in a broad range of workpiece materials including steel, stainless steel, and cast iron. The tool features a helical flute design with serrated (roughing-style) teeth along the cutting length, enabling chip segmentation and reduced cutting forces during interpolation, and is suited for CNC machining centers capable of helical interpolation with coolant-through or flood coolant delivery. The 'W0' designation in the part number indicates a straight (non-tapered) shank with no special adaptation, and the cutter produces a complete UNC internal thread in a single helical pass. RZ08169612 is the production batch reference and 36/19L6 indicates dimensional group data per Walter's internal coding.

Product Specifications