... union, drill pipe, drill collar, safety clamps, elevator, mud pump and stabilizers for water well, oil field, construction, geothermal, directional boring, and ... in different size. Size: 3 1/2-155/8 inch Safety Clamps. We could provide you Safety Clamps with fine quality at positive ... to 15 5/8,WA-T accommodate pipe from 1 1/8 to 4 1/2 SizeSize rangeNo. of chain linksWeight mm ( in ...