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Home - Products - Twist Drill - American Standard

Jobber Length Drills
Size  Decimal Flute Length Overall Length Item No.
Equivalent L1 L2
1/16 0.0625 7/8 1-7/8 SL0121010116
5/64 0.0781 1 2 SL0121010564
3/32 0.0938 1-1/4 2-1/4 SL0121010332
7/64 0.1094 1-1/2 2-5/8 SL0121010764
1/8 0.1250 1-5/8 2-3/4 SL0121010108
9/64 0.1406 1-3/4 2-7/8 SL0121010964
5/32 0.2188 2 3-1/8 SL0121010532
11/64 0.1719 2-1/8 3-1/4 SL0121011164
3/16 0.1875 2-5/16 3-1/2 SL0121010316
13/64 0.2031 2-7/16 3-5/8 SL0121011364
7/32 0.2188 2-1/2 3-3/4 SL0121010732
15/64 0.2344 2-5/8 3-3/7 SL0121011564
1/4 0.2500 2-3/4 4 SL0121010104
17/64 0.2656 2-7/8 4-1/8 SL0121011764
9/32 0.2812 2-15/16 4-1/4 SL0121010932
19/64 0.2969 3-1/16 4-1/4 SL0121011964
5/16 0.3125 3-3/16 4-1/2 SL0121010516
21/64 0.3281 3-5/10 4-3/4 SL0121012164
11/32 0.3438 3-7/16 4-5/8 SL0121011132
23/64 0.3594 3-1/2 4-7/8 SL0121012364
3/8 0.3750 3-5/8 5 SL0121010308
25/64 0.3906 3-3/4 5-1/8 SL0121012564
13/32 0.4062 3-7/8 5-1/4 SL0121011332
27/64 0.4219 3-15/16 5-3/8 SL0121012764
7/16 0.4375 4-1/16 5-1/2 SL0121010716
29/64 0.4531 4-3/16 5-5/8 SL0121012964
15/32 0.4688 4-5/16 5-3/4 SL0121011532
31/64 0.4844 4-3/8 5-7/8 SL0121013164
1/2 0.5000 4-1/2 6 SL0121010102
Size Decimal Flute Length Overall Length Item No.
Equivalent L1 L2
1# 0.2280 2-5/8 3-7/8 SL0121020001
2# 0.2210 2-5/8 3-7/8 SL0121020002
3# 0.2130 2-1/2 3-3/4 SL0121020003
4# 0.2090 2-1/2 3-3/4 SL0121020004
5# 0.2055 2-1/2 3-3/4 SL0121020005
6# 0.2040 2-1/2 3-3/4 SL0121020006
7# 0.2010 2-7/16 3-5/8 SL0121020007
8# 0.1990 2-7/16 3-5/8 SL0121020008
9# 0.1960 2-7/16 3-5/8 SL0121020009
10# 0.1935 2-7/16 3-5/8 SL0121020010
11# 0.1910 2-5/16 3-1/2 SL0121020011
12# 0.1890 2-5/16 3-1/2 SL0121020012
13# 0.1850 2-5/16 3-1/2 SL0121020013
14# 0.1820 2-3/16 3-3/8 SL0121020014
15# 0.1800 2-3/16 3-3/8 SL0121020015
16# 0.1770 2-3/16 3-3/8 SL0121020016
17# 0.1730 2-3/16 3-3/8 SL0121020017
18# 0.1695 2-1/8 3-1/4 SL0121020018
19# 0.1660 2-1/8 3-1/4 SL0121020019
20# 0.1610 2-1/8 3-1/4 SL0121020020
21# 0.1590 2-1/8 3-1/4 SL0121020021
22# 0.1570 2 3-1/8 SL0121020022
23# 0.1540 2 3-1/8 SL0121020023
24# 0.1520 2 3-1/8 SL0121020024
25# 0.1495 1-7/8 3 SL0121020025
26# 0.1470 1-7/8 3 SL0121020026
27# 0.1440 1-7/8 3 SL0121020027
28# 0.1405 1-3/4 2-7/8 SL0121020028
29# 0.1360 1-3/4 2-7/8 SL0121020029
30# 0.1285 1-5/8 2-3/4 SL0121020030
31# 0.1200 1-5/8 2-3/4 SL0121020031
32# 0.1160 1-5/8 2-3/4 SL0121020032
33# 0.1130 1-1/2 2-5/8 SL0121020033
34# 0.1110 1-1/2 2-5/8 SL0121020034
35# 0.1100 1-1/2 2-5/8 SL0121020035
36# 0.1065 1-7/16 2-1/2 SL0121020036
37# 0.1040 1-7/16 2-1/2 SL0121020037
38# 0.1015 1-7/16 2-1/2 SL0121020038
39# 0.0995 1-3/8 2-3/8 SL0121020039
40# 0.0980 1-3/8 2-3/8 SL0121020040
41# 0.0960 1-3/8 2-3/8 SL0121020041
42# 0.0935 1-1/4 2-1/4 SL0121020042
43# 0.0890 1-1/4 2-1/4 SL0121020043
44# 0.0860 1-1/8 2-1/8 SL0121020044
45# 0.0820 1-1/8 2-1/8 SL0121020045
46# 0.0810 1-1/8 2-1/8 SL0121020046
47# 0.0785 1 2 SL0121020047
48# 0.0760 1 2 SL0121020048
49# 0.0730 1 2 SL0121020049
50# 0.0700 1 2 SL0121020050
51# 0.0670 1 2 SL0121020051
52# 0.0635 7/8 1-7/8 SL0121020052
53# 0.0595 7/8 1-7/8 SL0121020053
54# 0.0550 7/8 1-7/8 SL0121020054
55# 0.0520 7/8 1-7/8 SL0121020055
56# 0.0465 3/4 1-3/4 SL0121020056
57# 0.0430 3/4 1-3/4 SL0121020057
58# 0.0420 11/16 1-5/8 SL0121020058
59# 0.0410 11/16 1-5/8 SL0121020059
60# 0.0400 11/16 1-5/8 SL0121020060
Size Decimal Flute Length Overall Length Item No.
Equivalent L1 L2
A 0.2340 2-5/8 3-7/8 SL0121030001
B 0.2380 2-3/4 4 SL0121030002
C 0.2420 2-3/4 4 SL0121030003
D 0.2460 2-3/4 4 SL0121030004
E 0.2500 2-3/4 4 SL0121030005
F 0.2570 2-7/8 4-1/8 SL0121030006
G 0.2610 2-7/8 4-1/8 SL0121030007
H 0.2660 2-7/8 4-1/8 SL0121030008
I 0.2720 2-7/8 4-1/8 SL0121030009
J 0.2770 2-7/8 4-1/8 SL0121030010
K 0.2810 2-15/16 4-1/4 SL0121030011
L 0.2900 2-15/16 4-1/4 SL0121030012
M 0.2950 3-1/16 4-3/8 SL0121030013
N 0.3020 3-1/16 4-3/8 SL0121030014
O 0.3160 3-3/16 4-1/2 SL0121030015
P 0.3230 3-5/16 4-5/8 SL0121030016
Q 0.3320 3-7/16 4-3/4 SL0121030017
R 0.3390 3-7/16 4-3/4 SL0121030018
S 0.3480 3-1/2 4-7/8 SL0121030019
T 0.3580 3-1/2 4-7/8 SL0121030020
U 0.3680 3-5/8 5 SL0121030021
V 0.3770 3-5/8 5 SL0121030022
W 0.3860 3-3/4 5-1/8 SL0121030023
X 0.3970 3-3/4 5-1/8 SL0121030024
Y 0.4040 3-7/8 5-1/4 SL0121030025
Z 0.4130 3-7/8 5-1/4 SL0121030026
Size Decimal Flute Length Overall Length Item No.
Equivalent L1 L2
1.00mm 0.0394 17 41 SL0121040100
1.50mm 0.0591 22 48 SL0121040150
2.00mm 0.0787 25 51 SL0121040200
2.50mm 0.0984 35 60 SL0121040250
3.00mm 0.1181 41 70 SL0121040300
3.30mm 0.1299 44 73 SL0121040330
3.50mn 0.1378 44 73 SL0121040350
4.00mm 0.1575 54 83 SL0121040400
4.20mm 0.1654 54 83 SL0121040420
4.50mm 0.1772 56 86 SL0121040450
5.00mm 0.1969 62 92 SL0121040500
5.50mm 0.2165 64 95 SL0121040550
6.00mm 0.2362 70 102 SL0121040600
6.50mm 0.2559 73 105 SL0121040650
7.00mm 0.2756 73 105 SL0121040700
7.50mm 0.2953 78 111 SL0121040750
8.00mm 0.3150 81 114 SL0121040800
8.50mm 0.3346 87 121 SL0121040850
9.00mm 0.3543 89 124 SL0121040900
9.50mm 0.3740 92 127 SL0121040950
10.00mm 0.3937 95 130 SL0121041000
10.50mm 0.4134 98 133 SL0121041050
11.00mm 0.4331 103 140 SL0121041100
11.50mm 0.4528 106 143 SL0121041150
12.00mm 0.4724 111 149 SL0121041200
12.50mm 0.4921 114 152 SL0121041250
13.00mm 0.5118 114 152 SL0121041300