Smooth Bore Ring Gages

.3175 CL XX CARBIDE MASTER PLAIN BORE RING GAGE .3125 +.0050 OVERSIZE 5/16 8 mm - JC2947BR3

.5210 CL Z MASTER PLAIN BORE RING GAGE .5313 -.0103 17/32 13.233 mm .521 CHECK - JC2942BR3

.8400 CL X MASTER PLAIN BORE RING GAGE .8438 -.0038 27/32 21.336 mm .840 CHECK - JC2919AC4

.9720 CL XX MASTER PLAIN BORE RING GAGE .9688 +.0032 31/32 24.689 mm .972 CHECK - JC2917AC4

1.2400 MASTER PLAIN BORE RING GAGE 1.2500 -.0100 UNDERSIZE 1 1/4 31.496 mm 1.240 - JC2921AC4

1.2399 MASTER PLAIN BORE RING GAGE 1.2500 -.0101 UNDERSIZE 1 1/4 31.493 mm CHECK - JC2916AC4

.9443 CLASS XX MASTER PLAIN BORE RING GAGE .9375 +.0068 OVERSIZE 15/16 24 mm - JC2920AC4

.9979 MASTER PLAIN BORE RING GAGE 1.0000 -.0021 UNDERSIZE 1.0 25.347 mm CHECK - JC2915AC4

2.0620 CL X MASTER PLAIN BORE RING GAGE 2.0625 -.0005 2 1/16 52.375 mm 2.062 - JC2914AC4

.9900 CL XX MASTER PLAIN BORE RING GAGE 1.0000 -.0100 UNDERSIZE 1.0 25 mm .990 - JC2913AC4

1.1942 MASTER PLAIN BORE RING GAGE 1.1875 +.0067 OVERSIZE 1 3/16 30.333 mm CHECK - JC2911AC4

1.8506 CLASS XX MASTER PLAIN BORE RING GAGE 1.8438 +.0068 OVERSIZE 1 27/32 47 mm - JC2910AC4