The gauge is used for heat chemical industry such as electric steel mill and used as a taper thread gauge for connection part of round type graphite electrode. All sizes of the gauge is 1/3 thread gauge dimensionally controlled by master gauge. All sizes taper thread gauge from small size to large size and also measuring equipments such as lead gauge, thread depth gauge etc. is available.
		In case of order, please specify, size, kind of gauge and accessory EXAMPLE PA & PB SET GAUGE BLOCK FOR TAPER MEASURING SET GAUGE BLOCK FOR PITCH DIAMETER MEASURING DEPTH DIAL INDICATOR TORQUE WRENCH