Carmex SIR 0050 U22 Internal Thread Toolholder, 22 mm Insert Carmex Internal Right Hand Partial Profile 55° Thread Turning Insert 48 16 TPI 11 IR A60 P25C Specification Metric Imperial Workpiece Material(s) Best Carbide SG3M 9.5mm Double Cut Metric Carbide Burr Specification Metric Imperial Workpiece Material(s) PMK — Thread Size UNF 5 8 18 5 8 18 Thread Form UNF 60° UNF 60° Thread Pitch 1 MT2 shank for Morse Taper 2 spindles The Carmex SIR 0050 U22 is a heavy duty internal thread turning toolholder built for high stability machining using 22 mm IC internal threading inserts —a global leader in premium threading and grooving solutions—the SIR 0050 U22 is trusted in high performance machining environments requiring maximum rigidity and precision