Economy Single Purpose HI-LO Welding Gauge Part No: WG-602 It is special NDT inspection tools, checking pipe internal alignment and determining rootweld spacing China Manufacturer, the top quality one, OEM for many brands. ootweld spacing gage. Easy operation determines rootweld spacing. 1. Unlock the retaining screw and insert the gage interior alignment stops between the two pieces of pipe to be fitted. 2. Insert the leg with the long taper into the root gap until it makes contact with both sides of the gap. Relock the retaining screw, remove the gage and read it. 3. The scale is calibrated in fractional dimensions from 1/32 to 3/16 inch in 1/16 inch increment markings. The readout you receive represents the amount of the rootweld gap. packed in the pouch. Brand: ROKTOOLS