Carmex Internal Right Hand Partial Profile 60° Thread Turning Insert 16mm 48–8 TPI 16 IR AG60 BLU 230 piece cottoer pin grab kit assortment assorted sizes split lock pins fastners hardware industrial supplies 7 Thread Plug Gauge is CH Tools – Mini Cutter Arbor 21–25 mm 7 Thread Plug Gauge is a precision engineered tool used to check internal thread sizes for accuracy and compliance The Insize Surface Roughness Specimen Set is a precision reference tool designed for evaluating surface finishes produced by surface grinding this insert is ideal for general purpose threading tasks that require flexibility without sacrificing precision built in lubricity