Full resolution (JPEG) - On this page / på denna sida - Weights and Measures - Table of decimal equivalents of the numbers of twist drills and the steel wire gage - Table of decimal equivalents of Stubs’ steel wire gage
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TABLE No. 19.—Decimal Equivalents of the Numbers of Twist Drill
and Steel Wire Gage. (Brown & Sharpe Mfg. Co.)
No.
Size in
Deci-
mals.
No.
Size in
Deci-
mals.
No.
Size in
Deci-
mals.
No.
Size
in
Deci-
mals.
No.
Size
in
Deci-
mals.
i
No.,
Size in
Deci-
mals.
1 .2280 15 .1800 29 .1360 42 .0935i 55 .0520 68 .0310
2 .2210 16 .1770 30 .1285 43 .0890 56 .0465 69 .02925
3 .2130 17 .1730 31 .1200 44 .0860 57 .0430 70 .0280
4 .2090 18 .1695 32 .1160 45 .0820 58 .0420 71 .0260
5 .2055 19 .1660 33 .1130 46 .0810 59 .0410 72 .0250
6 .2040 20 .1610 34 .1110 47 .0785 60 .0400 73 .0240
7 .2010 21 .1590 35 .1100 48 .0760 61 .0390 74 .0225
8 .1990 22 .1570 36 .1065 49 .0730 62 .0380 75 .0210
9 .1960 23 .1540 37 .1040 50 .0700 63 .0370 76 .0200
10 .1935 24 .1520 38 .1015 51 .0670 64 .0360 77 .0180
11 .1910 25 .1495 39 .0995 52 .0635 65 .0350 78 .0160
12 .1890 26 .1470 40 .0980 53 .0595 66 .0330 79 .0145
13 .1850 27 .1440 41 .0960 54 .0550 67 .0320 80 .0135
14 .1820 28 .1405
rABLE Vo. 20—Deci
(
tnal
Brow
Bquivale
n & Shar
nts <
peM
>f Stubs’ Steel Wire Gage.
g. Co.)
4)
Size
in
Deci-
mals.
S.S
Size
in
Deci-
mals.
be
°o
O t>
Size
in
Deci-
mals.
fc.S:
Size
in
Deci-
mals.
6
M
Size
in
Deci-
mals.
4J
Size
in
Deci-
mals.
z .413 H .266 11 .188 29 .134 47 .077 65 .033
Y .404 G .261 12 .185 30 .127 48 .075 66 .032
X .397 F .257 13 .182 31 .120 49 .072 67 .031
w .386 E .250 14 .180 32 .115 50 .069 68 .030
V .377 D .246 15 .178 33 .112 51 .066 69 .029
u .368 C .242 16 .175 34 .110 52 .063 70 .027
T .358 B .238 17 .172 35 .108 53 .058 71 .026
S .348 A .234 18 .168 36 .106 54 .055 72 .024
R .339 1 .227 19 .164 37 .103 55 .050 73 .023
Q .332 2 .219 20 .161 38 .101 56 .045 74 .022
P .323 3 .212 21 .157 39 .099 57 .042 75 .020
.316 4 .207 22 .155 40 .097 58 .041 76 .018
N .302 5 .204 23 .153 41 .095 59 .040 77 .016
M .295 6 .201 24 .151 42 .092 60 .039 78 .015
L .290 7 .199 25 .148 43 .088 61 .038 79 .014
K .281 8 .197 26 .146 44 .085 62 .037 80 .013
J .277 9 .194 27 .143 45 .081 63 .036
I .272 10 .191 28 .139 46 .079 64 .035
In using the gages known as Stubs’ Gages, there should be constantly borne in
mind the difference between the Stubs Iron Wire Gage and the Stubs Steel Wire
Gage. The Stubs Iron Wire Gage is the one commonly known as the English
Standard Wire, or Birmingham Gage, and designates the Stubs soft wire sizes. The
Stubs Steel Wire Gage is the one that is used in measuring drawn steel wire or drill
rods of Stubs’ make, and is also used by many makers of American drill rods.
(I 48)
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