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HS Jobber Drills - Cobalt

Fractional Cobalt Jobber Drills

Better heat resistance-ideal for tougher, harder steels, including most stainless steels.
Jobber Drills are GROUND FROM SOLID
Quantity Price Model Description Size Decimal Equivalent Overall Length

$1.50 JCO-1/32
1/32" Cobalt Jobber Drill 1/32" 0.0312 1 3/8

$0.98 JCO-3/64
3/64" Cobalt Jobber Drill 3/64" 0.0469 1 3/4

$0.88 JCO-1/16
1/16" Cobalt Jobber Drill 1/16" .0625 1 7/8

$0.88 JCO-5/64
5/64" Cobalt Jobber Drill 5/64" 0.0781 2"

$0.88 JCO-3/32
3/32" Cobalt Jobber Drill 3/32" 0.0937 2 1/4

$0.98 JCO-7/64
7/64" Cobalt Jobber Drill 7/64" 0.1094 2 5/8

$1.18 JCO-1/8
1/8" Cobalt Jobber Drill 1/8" 0.125 2 3/4

$1.21 JCO-9/64
9/64" Cobalt Jobber Drill 9/64" 0.1406 2 7/8

$1.36 JCO-5/32
5/32" Cobalt Jobber Drill 5/32" 0.1562 3 1/8

$1.44 JCO-11/64
11/64" Cobalt Jobber Drill 11/64" 0.1719 3 1/4

$1.57 JCO-3/16
3/16" Cobalt Jobber Drill 3/16" 0.1875 3 1/2

$1.92 JCO-13/64
13/64" Cobalt Jobber Drill 13/64" 0.2031 3 5/8

$2.05 JCO-7/32
7/32" Cobalt Jobber Drill 7/32" 0.2187 3 3/4

$2.20 JCO-15/64
15/64" Cobalt Jobber Drill 15/64" 0.2344 3 7/8

$2.35 JCO-1/4
1/4" Cobalt Jobber Drill 1/4" 0.25 4"

$2.75 JCO-17/64
17/64" Cobalt Jobber Drill 17/64" 0.2656 4 1/8

$2.90 JCO-9/32
9/32" Cobalt Jobber Drill 9/32" 0.2812 4 1/4

$3.45 JCO-19/64
19/64" Cobalt Jobber Drill 19/64" 0.2969 4 3/8

$3.65 JCO-5/16
5/16" Cobalt Jobber Drill 5/16" 0.3125 4 1/2

$4.12 JCO-21/64
21/64" Cobalt Jobber Drill 21/64" 0.3281 4 5/8

$4.38 JCO-11/32
11/32" Cobalt Jobber Drill 11/32" 0.3437 4 3/4

$5.30 JCO-23/64
23/64" Cobalt Jobber Drill 23/64" 0.3594 4 7/8

$5.40 JCO-3/8
3/8" Cobalt Jobber Drill 3/8" 0.375 5"

$6.42 JCO-25/64
25/64" Cobalt Jobber Drill 25/64" 0.3906 5 1/8

$6.78 JCO-13/32
13/32" Cobalt Jobber Drill 13/32" 0.4062 5 1/4

$7.24 JCO-27/64
27/64" Cobalt Jobber Drill 27/64" 0.4219 5 3/8

$8.18 JCO-7/16
7/16" Cobalt Jobber Drill 7/16" 0.4375 5 1/2

$8.60 JCO-29/64
29/64" Cobalt Jobber Drill 29/64" 0.4531 5 5/8

$8.96 JCO-15/32
15/32" Cobalt Jobber Drill 15/32" 0.4687 5 3/4

$9.36 JCO-31/64
31/64" Cobalt Jobber Drill 31/64" 0.4844 5 7/8

$9.90 JCO-1/2
1/2" Cobalt Jobber Drill 1/2" 0.5 6"

USA Cobalt Split Point Fractional Drills

Cobalt drills for greater heat resistance when drilling harder materials, with split point tips for accurate starts.
Made in the USA.
Quantity Price Model Description Size Decimal Equivalent Overall Length

$1.45 JCU-1/16
1/16" Cobalt Split Point Jobber Drill USA 1/16" .0625 1 7/8

$1.45 JCU-5/64
5/64" Cobalt Split Point Jobber Drill USA 5/64" 0.0781 2"

$1.45 JCU-3/32
3/32" Cobalt Split Point Jobber Drill USA 3/32" 0.0937 2 1/4

$1.45 JCU-7/64
7/64" Cobalt Split Point Jobber Drill USA 7/64" 0.1094 2 5/8

$1.82 JCU-1/8
1/8" Cobalt Split Point Jobber Drill USA 1/8" 0.125 2 3/4

$1.95 JCU-9/64
9/64" Cobalt Split Point Jobber Drill USA 9/64" 0.1406 2 7/8

$2.06 JCU-5/32
5/32" Cobalt Split Point Jobber Drill USA 5/32" 0.1562 3 1/8

$2.17 JCU-11/64
11/64" Cobalt Split Point Jobber Drill USA 11/64" 0.1719 3 1/4

$2.48 JCU-3/16
3/16" Cobalt Split Point Jobber Drill USA 3/16" 0.1875 3 1/2

$3.19 JCU-13/64
13/64" Cobalt Split Point Jobber Drill USA 13/64" 0.2031 3 5/8

$3.41 JCU-7/32
7/32" Cobalt Split Point Jobber Drill USA 7/32" 0.2187 3 3/4

$3.70 JCU-15/64
15/64" Cobalt Split Point Jobber Drill USA 15/64" 0.2344 3 7/8

$3.96 JCU-1/4
1/4" Cobalt Split Point Jobber Drill USA 1/4" 0.25 4"

$4.41 JCU-17/64
17/64" Cobalt Split Point Jobber Drill USA 17/64" 0.2656 4 1/8

$4.73 JCU-9/32
9/32" Cobalt Split Point Jobber Drill USA 9/32" 0.2812 4 1/4

$5.55 JCU-19/64
19/64" Cobalt Split Point Jobber Drill USA 19/64" 0.2969 4 3/8

$5.95 JCU-5/16
5/16" Cobalt Split Point Jobber Drill USA 5/16" 0.3125 4 1/2

$6.47 JCU-21/64
21/64" Cobalt Split Point Jobber Drill USA 21/64" 0.3281 4 5/8

$7.57 JCU-11/32
11/32" Cobalt Split Point Jobber Drill USA 11/32" 0.3437 4 3/4

$8.62 JCU-23/64
23/64" Cobalt Split Point Jobber Drill USA 23/64" 0.3594 4 7/8

$8.95 JCU-3/8
3/8" Cobalt Split Point Jobber Drill USA 3/8" 0.375 5"

$9.43 JCU-25/64
25/64" Cobalt Split Point Jobber Drill USA 25/64" 0.3906 5 1/8

$9.98 JCU-13/32
13/32" Cobalt Split Point Jobber Drill USA 13/32" 0.4062 5 1/4

$10.66 JCU-27/64
27/64" Cobalt Split Point Jobber Drill USA 27/64" 0.4219 5 3/8

$11.07 JCU-7/16
7/16" Cobalt Split Point Jobber Drill USA 7/16" 0.4375 5 1/2

$13.32 JCU-29/64
29/64" Cobalt Split Point Jobber Drill USA 29/64" 0.4531 5 5/8

$13.53 JCU-15/32
15/32" Cobalt Split Point Jobber Drill USA 15/32" 0.4687 5 3/4

$13.92 JCU-31/64
31/64" Cobalt Split Point Jobber Drill USA 31/64" 0.4844 5 7/8

$14.32 JCU-1/2
1/2" Cobalt Split Point Jobber Drill USA 1/2" 0.5 6"

Number Size Cobalt Jobber Drills

Better heat resistance-ideal for tougher, harder steels, including most stainless steels.
Cobalt Jobber Drills are ground from solid stock.
Quantity Price Model Description Size Decimal Equivalent Overall Length

$2.50 JCON-1
#1 Cobalt Jobber Drill 1 .2280" 3 7/8"

$2.50 JCON-2
#2 Cobalt Jobber Drill 2 0.221 3 7/8

$2.22 JCON-3
#3 Cobalt Jobber Drill 3 0.213 3 3/4

$2.31 JCON-4
#4 Cobalt Jobber Drill 4 0.209 3 3/4

$2.31 JCON-5
#5 Cobalt Jobber Drill 5 0.2055 3 3/4

$2.31 JCON-6
#6 Cobalt Jobber Drill 6 0.204 3 3/4

$1.80 JCON-7
#7 Cobalt Jobber Drill 7 0.201 3 5/8

$1.80 JCON-8
#8 Cobalt Jobber Drill 8 0.199 3 5/8

$1.95 JCON-9
#9 Cobalt Jobber Drill 9 0.196 3 5/8

$1.80 JCON-10
#10 Cobalt Jobber Drill 10 0.1935 3 5/8

$1.98 JCON-11
#11 Cobalt Jobber Drill 11 0.191 3 1/2

$1.98 JCON-12
#12 Cobalt Jobber Drill 12 0.189 3 1/2

$1.79 JCON-13
#13 Cobalt Jobber Drill 13 0.185 3 1/2

$1.79 JCON-14
#14 Cobalt Jobber Drill 14 0.182 3 3/8

$1.79 JCON-15
#15 Cobalt Jobber Drill 15 0.18 3 3/8

$1.65 JCON-16
#16 Cobalt Jobber Drill 16 0.177 3 3/8

$1.57 JCON-17
#17 Cobalt Jobber Drill 17 0.173 3 3/8

$1.48 JCON-18
#18 Cobalt Jobber Drill 18 0.1695 3 1/4

$1.39 JCON-19
#19 Cobalt Jobber Drill 19 0.166 3 1/4

$1.39 JCON-20
#20 Cobalt Jobber Drill 20 0.161 3 1/4

$1.30 JCON-21
#21 Cobalt Jobber Drill 21 0.159 3 1/4

$1.40 JCON-22
#22 Cobalt Jobber Drill 22 0.157 3 1/8

$1.40 JCON-23
#23 Cobalt Jobber Drill 23 0.154 3 1/8

$1.40 JCON-24
#24 Cobalt Jobber Drill 24 0.152 3 1/8

$1.26 JCON-25
#25 Cobalt Jobber Drill 25 0.1495 3"

$1.26 JCON-26
#26 Cobalt Jobber Drill 26 0.147 3"

$1.26 JCON-27
#27 Cobalt Jobber Drill 27 0.144 3"

$1.20 JCON-28
#28 Cobalt Jobber Drill 28 0.1405 2 7/8

$1.15 JCON-29
#29 Cobalt Jobber Drill 29 0.136 2 7/8

$1.10 JCON-30
#30 Cobalt Jobber Drill 30 0.1285 2 3/4

$1.10 JCON-31
#31 Cobalt Jobber Drill 31 0.12 2 3/4

$1.10 JCON-32
#32 Cobalt Jobber Drill 32 0.116 2 3/4

$1.04 JCON-33
#33 Cobalt Jobber Drill 33 0.113 2 5/8

$1.04 JCON-34
#34 Cobalt Jobber Drill 34 0.111 2 5/8

$1.04 JCON-35
#35 Cobalt Jobber Drill 35 0.11 2 5/8

$1.04 JCON-36
#36 Cobalt Jobber Drill 36 0.1065 2 1/2

$1.04 JCON-37
#37 Cobalt Jobber Drill 37 0.104 2 1/2

$0.94 JCON-38
#38 Cobalt Jobber Drill 38 0.1015 2 1/2

$0.94 JCON-39
#39 Cobalt Jobber Drill 39 0.0995 2 3/8

$0.94 JCON-40
#40 Cobalt Jobber Drill 40 0.098 2 3/8

$0.90 JCON-41
#41 Cobalt Jobber Drill 41 0.096 2 3/8

$0.90 JCON-42
#42 Cobalt Jobber Drill 42 0.0935 2 1/4

$0.90 JCON-43
#43 Cobalt Jobber Drill 43 0.089 2 1/4

$0.90 JCON-44
#44 Cobalt Jobber Drill 44 0.086 2 1/8

$0.90 JCON-45
#45 Cobalt Jobber Drill 45 0.082 2 1/8

$0.90 JCON-46
#46 Cobalt Jobber Drill 46 0.081 2 1/8

$0.90 JCON-47
#47 Cobalt Jobber Drill 47 0.0785 2"

$0.90 JCON-48
#48 Cobalt Jobber Drill 48 0.076 2"

$0.90 JCON-49
#49 Cobalt Jobber Drill 49 0.073 2"

$0.90 JCON-50
#50 Cobalt Jobber Drill 50 0.07 2"

$0.90 JCON-51
#51 Cobalt Jobber Drill 51 0.067 2"

$0.90 JCON-52
#52 Cobalt Jobber Drill 52 0.0635 1 7/8

$0.98 JCON-53
#53 Cobalt Jobber Drill 53 0.0595 1 7/8

$0.98 JCON-54
#54 Cobalt Jobber Drill 54 0.055 1 7/8

$0.98 JCON-55
#55 Cobalt Jobber Drill 55 0.052 1 7/8

$0.98 JCON-56
#56 Cobalt Jobber Drill 56 0.0465 1 3/4

$1.15 JCON-57
#57 Cobalt Jobber Drill 57 0.043 1 3/4

$1.20 JCON-58
#58 Cobalt Jobber Drill 58 0.042 1 5/8

$1.25 JCON-59
#59 Cobalt Jobber Drill 59 0.041 1 5/8

$1.25 JCON-60
#60 Cobalt Jobber Drill 60 0.04 1 5/8

Number Size USA Cobalt Split Point Drills

Cobalt drills for greater heat resistance when drilling harder materials, with split point tips for accurate starts.
Sizes 53 through 60 do not have split points.
Made in the USA.
Quantity Price Model Description Size Decimal Equivalent Overall Length

$3.90 JCUN-1
#1 Cobalt Split Point Jobber Drill USA #1 .2280" 3 7/8"

$3.90 JCUN-2
#2 Cobalt Split Point Jobber Drill USA #2 0.221 3 7/8

$3.59 JCUN-3
#3 Cobalt Split Point Jobber Drill USA #3 0.213 3 3/4

$3.59 JCUN-4
#4 Cobalt Split Point Jobber Drill USA #4 0.209 3 3/4

$3.59 JCUN-5
#5 Cobalt Split Point Jobber Drill USA #5 0.2055 3 3/4

$3.59 JCUN-6
#6 Cobalt Split Point Jobber Drill USA #6 0.204 3 3/4

$3.34 JCUN-7
#7 Cobalt Split Point Jobber Drill USA #7 0.201 3 5/8

$3.34 JCUN-8
#8 Cobalt Split Point Jobber Drill USA #8 0.199 3 5/8

$3.34 JCUN-9
#9 Cobalt Split Point Jobber Drill USA #9 0.196 3 5/8

$3.34 JCUN-10
#10 Cobalt Split Point Jobber Drill USA #10 0.1935 3 5/8

$3.34 JCUN-11
#11 Cobalt Split Point Jobber Drill USA #11 0.191 3 1/2

$3.34 JCUN-12
#12 Cobalt Split Point Jobber Drill USA #12 0.189 3 1/2

$2.63 JCUN-13
#13 Cobalt Split Point Jobber Drill USA #13 0.185 3 1/2

$2.70 JCUN-14
#14 Cobalt Split Point Jobber Drill USA #14 0.182 3 3/8

$2.70 JCUN-15
#15 Cobalt Split Point Jobber Drill USA #15 0.18 3 3/8

$2.63 JCUN-16
#16 Cobalt Split Point Jobber Drill USA #16 0.177 3 3/8

$2.63 JCUN-17
#17 Cobalt Split Point Jobber Drill USA #17 0.173 3 3/8

$2.35 JCUN-18
#18 Cobalt Split Point Jobber Drill USA #18 0.1695 3 1/4

$2.35 JCUN-19
#19 Cobalt Split Point Jobber Drill USA #19 0.166 3 1/4

$2.35 JCUN-20
#20 Cobalt Split Point Jobber Drill USA #20 0.161 3 1/4

$2.35 JCUN-21
#21 Cobalt Split Point Jobber Drill USA #21 0.159 3 1/4

$2.42 JCUN-22
#22 Cobalt Split Point Jobber Drill USA #22 0.157 3 1/8

$2.26 JCUN-23
#23 Cobalt Split Point Jobber Drill USA #23 0..154 3 1/8

$2.26 JCUN-24
#24 Cobalt Split Point Jobber Drill USA #24 0.152 3 1/8

$2.26 JCUN-25
#25 Cobalt Split Point Jobber Drill USA #25 0.1495 3"

$2.26 JCUN-26
#26 Cobalt Split Point Jobber Drill USA #26 0.147 3"

$2.26 JCUN-27
#27 Cobalt Split Point Jobber Drill USA #27 0.144 3"

$2.17 JCUN-28
#28 Cobalt Split Point Jobber Drill USA #28 0.1405 2 7/8

$2.10 JCUN-29
#29 Cobalt Split Point Jobber Drill USA #29 0..136 2 7/8

$2.10 JCUN-30
#30 Cobalt Split Point Jobber Drill USA #30 0.1285 2 3/4

$2.03 JCUN-31
#31 Cobalt Split Point Jobber Drill USA #31 0.12 2 3/4

$2.03 JCUN-32
#32 Cobalt Split Point Jobber Drill USA #32 0.116 2 3/4

$2.03 JCUN-33
#33 Cobalt Split Point Jobber Drill USA #33 0.1130 2 5/8

$2.03 JCUN-34
#34 Cobalt Split Point Jobber Drill USA #34 0.111 2 5/8

$2.03 JCUN-35
#35 Cobalt Split Point Jobber Drill USA #35 0.11 2 5/8

$1.68 JCUN-36
#36 Cobalt Split Point Jobber Drill USA #36 0.1065 2 1/2

$1.68 JCUN-37
#37 Cobalt Split Point Jobber Drill USA #37 0.104 2 1/2

$1.68 JCUN-38
#38 Cobalt Split Point Jobber Drill USA #38 0.1015 2 1/2

$1.68 JCUN-39
#39 Cobalt Split Point Jobber Drill USA #39 0.0995 2 3/8

$1.62 JCUN-40
#40 Cobalt Split Point Jobber Drill USA #40 0.098 2 3/8

$1.68 JCUN-41
#41 Cobalt Split Point Jobber Drill USA #41 0.096 2 3/8

$1.46 JCUN-42
#42 Cobalt Split Point Jobber Drill USA #42 0.0935 2 1/4

$1.46 JCUN-43
#43 Cobalt Split Point Jobber Drill USA #43 0.089 2 1/4

$1.46 JCUN-44
#44 Cobalt Split Point Jobber Drill USA #44 0.086 2 1/8

$1.46 JCUN-45
#45 Cobalt Split Point Jobber Drill USA #45 0.082 2 1/8

$1.46 JCUN-46
#46 Cobalt Split Point Jobber Drill USA #46 0.081 2 1/8

$1.46 JCUN-47
#47 Cobalt Split Point Jobber Drill USA #47 0.0785 2"

$1.46 JCUN-48
#48 Cobalt Split Point Jobber Drill USA #48 0.076 2"

$1.46 JCUN-49
#49 Cobalt Split Point Jobber Drill USA #49 0.073 2"

$1.46 JCUN-50
#50 Cobalt Split Point Jobber Drill USA #50 0.07 2"

$1.46 JCUN-51
#51 Cobalt Split Point Jobber Drill USA #51 0.067 2"

$1.46 JCUN-52
#52 Cobalt Split Point Jobber Drill USA #52 0.0635 1 7/8

$1.48 JCUN-53
#53 Cobalt Jobber Drill USA #53 0.0595 1 7/8

$1.48 JCUN-54
#54 Cobalt Jobber Drill USA #54 0.055 1 7/8

$1.48 JCUN-55
#55 Cobalt Jobber Drill USA #55 0.052 1 7/8

$1.63 JCUN-56
#56 Cobalt Jobber Drill USA #56 0.0465 1 3/4

$1.63 JCUN-57
#57 Cobalt Jobber Drill USA #57 0.043 1 3/4

$1.63 JCUN-58
#58 Cobalt Jobber Drill USA #58 0.042 1 5/8

$1.63 JCUN-59
#59 Cobalt Jobber Drill USA #59 0.041 1 5/8

$1.63 JCUN-60
#60 Cobalt Jobber Drill USA #60 0.04 1 5/8

Letter Size Cobalt Jobber Drills

Better heat resistance than High Speed Drills -ideal for tougher, harder steels, including most stainless steels.
Cobalt jobber drills are GROUND FROM SOLID
Quantity Price Model Description Size Decimal Equivalent Overall Length

$3.06 JCO-A
A Cobalt Jobber Drill A 0.234 3 7/8"

$3.52 JCO-B
B Cobalt Jobber Drill B 0.238 4"

$3.41 JCO-C
C Cobalt Jobber Drill C 0.242 4"

$3.98 JCO-D
D Cobalt Jobber Drill D 0.246 4"

$2.73 JCO-E
E Cobalt Jobber Drill E 0.25 4"

$3.52 JCO-F
F Cobalt Jobber Drill F 0.257 4 1/8"

$3.52 JCO-G
G Cobalt Jobber Drill G 0.261 4 1/8"

$3.98 JCO-H
H Cobalt Jobber Drill H 0.266 4 1/8"

$3.71 JCO-I
I Cobalt Jobber Drill I 0.272 4 1/8"

$3.98 JCO-J
J Cobalt Jobber Drill J 0.277 4 1/8"

$3.98 JCO-K
K Cobalt Jobber Drill K 0.281 4 1/4"

$4.45 JCO-L
L Cobalt Jobber Drill L 0.29 4 1/4"

$4.77 JCO-M
M Cobalt Jobber Drill M 0.295 4 3/8"

$4.75 JCO-N
N Cobalt Jobber Drill N 0.302 4 3/8"

$5.29 JCO-O
O Cobalt Jobber Drill O 0.316 4 1/2"

$5.62 JCO-P
P Cobalt Jobber Drill P 0.323 4 5/8"

$5.74 JCO-Q
Q Cobalt Jobber Drill Q 0.332 4 3/4"

$5.74 JCO-R
R Cobalt Jobber Drill R 0.339 4 3/4"

$7.16 JCO-S
S Cobalt Jobber Drill S 0.348 4 7/8"

$7.16 JCO-T
T Cobalt Jobber Drill T 0.358 4 7/8"

$7.16 JCO-U
U Cobalt Jobber Drill U 0.368 5"

$7.89 JCO-V
V Cobalt Jobber Drill V 0.377 5"

$7.89 JCO-W
W Cobalt Jobber Drill W 0.386 5 1/8"

$7.89 JCO-X
X Cobalt Jobber Drill X 0.397 5 1/8"

$8.38 JCO-Y
Y Cobalt Jobber Drill Y 0.404 5 1/4"

$9.11 JCO-Z
Z Cobalt Jobber Drill Z 0.413 5 1/4"

Cobalt Drill Sets

Sets of Cobalt Jobber Length Drills in metal case.
Cobalt drills will take more heat than High Speed Steel drills, extending their life and allowing them to better cut hard materials such as stainless steels.
Quantity Price Model Description Sizes Number of Drills

$67.50 DSCO-60
#1-60 Cobalt Drill Set #1 - #60 60

$94.60 DSCO-29
1/16"-1/2" by 64ths Cobalt Drill Set 1/16 - 1/2" by 64ths 29

$52.50 DSCO-15
1/16"-1/2" by 32nds Cobalt Drill Set 1/16 - 1/2" by 32nds 15

$17.90 DSCO-13
1/16"-1/4" by 64ths Cobalt Drill Set 1/16 - 1/4" by 64ths 13