Detailed Product Description Detailed Product Description Features1) Dial: 2.5", 3 ",4" 6" 2) Thread : 1/8", 1/4", 3/8, 1/2 (according to custom's request ,)3) Connection mounting: bottom , center back, 4) Material: a) Case and rolling bezel: b) Bourdon tube: brass, phosphor bronze c) Connection: brass, d) Dial and pointer: aluminum e) Window: glass, polycarbonate 5) Accuracy: 1.6, 2.5 6)Scale: ...