Inch

1/4 28 NF 3 THREAD RING GAGE .25 GO ONLY P.D. = .2268 1/4-28 .250 QUALITY TOOLS

METRO

5/16 27 NS THREAD RING GAGE .3125 GO ONLY P.D. = .2884 5/16-27 QUALITY TOOLS

3/8 16 NC DOUBLE LEAD LEFT HAND THREAD RING GAGE .375 GO ONLY P.D. = .3294 L.H.

PRATT & WHITNEY

9/16 27 NS THREAD RING GAGE .5625 GO ONLY P.D. = 5384 QUALITY 9/16-27 QUALITY

AGMACO

5/16 48 NS THREAD RING GAGE .3125 GO ONLY P.D. = .2946 QUALITY TOOL 5/16-48 NS

PRATT & WHITNEY

7/16 40 NS 2 THREAD RING GAGE .4375 NO GO ONLY P.D. = .4178 QUALITY 7/16-40 H28

HEMCO

1/4 20 UNC 3A THREAD RING GAGE .25 NO GO ONLY P.D. = .2147 QUALITY 1/4-20 UNC-3A

METRO

7/8 18 NS 2 THREAD RING GAGE .875 NO GO ONLY P.D. = .8340 7/8-18 QUALITY TOOL

CADILLAC GAGE CO.

1/4 24 NS 2 LEFT HAND THREAD RING GAGE .25 GO ONLY P.D. = .2229 L.H. LH 1/4-24

MATRIX

7/16 X 28 SOLID LEFT HAND THREAD RING GAGE .4375 28.0 GO ONLY P.D. = .4143 TOOL

13/16 28 SS 2 SOLID THREAD RING GAGE .8125 GO ONLY P.D. = .7943 QUALITY 13/16-28

1/4 28 NF 3 LEFT HAND THREAD RING GAGE .25 NO GO ONLY P.D. = .2246 L.H. QUALITY