Smooth Bore Ring Gages

.6590 CL XX MASTER PLAIN BORE RING GAGE .6563 +.0027 21/32 16.739 mm .659 CHECK - JC2803AC4

.1860 CL X MASTER PLAIN BORE RING GAGE .1875 -.0015 UNDERSIZE 3/16 4.724 mm .186 - JC2813AC4

.6650 CLASS X MASTER PLAIN BORE RING GAGE .6563 +.0087 OVERSIZE 21/32 17 mm .665 - JC2807AC4

.6550 CL X MASTER PLAIN BORE RING GAGE .6563 -.0013 21/32 16.637 mm .655 CHECK - JC2806AC4

.4900 CL XX MASTER PLAIN BORE RING GAGE .5000 -.0100 1/2 12.446 mm .490 CHECK - JC2805AC4

THE PIPE MACHINERY CO.

.3205 CLASS XX MASTER PLAIN BORE RING GAGE .3125 +.0080 OVERSIZE 5/16 8 mm CHECK - JC2802AC4

.6254 MASTER PLAIN BORE RING GAGE .6250 +.0004 OVERSIZE 5/8 16 mm INSPECTION - JC2801AC4

.7495 CLASS X MASTER PLAIN BORE RING GAGE .7500 -.0005 UNDERSIZE 3/4 19 mm CHECK - JC2800AC4

.5460 CLASS X MASTER PLAIN BORE RING GAGE .5469 -.0009 OVERSIZE 35/64 14 mm .546 - JC2799AC4

.7430 CLASS X MASTER PLAIN BORE RING GAGE .7500 -.0070 UNDERSIZE 3/4 19 mm .743 - JC2798AC4

.7570 CL XX MASTER PLAIN BORE RING GAGE .7500 +.0070 OVERSIZE 3/4 19.228 mm .757 - JC2797AC4

.12465 CLASS X MASTER PLAIN BORE RING GAGE .1250 -.0004 UNDERSIZE 1/8 3 mm CHECK - JC2785AC4