CoKiD Home

Cobalt Drill Bits

 

D-1/4

Made in the USA

National Aerospace Standard 907, Type J Cobalt Jobbers Length Bits

Made to NAS 907 Type J specifications, these cobalt jobbers length drills are used for drilling in tough, high tensile
strength materials like stainless steels, titanium and inconel.  They are made of 8% cobalt high speed steel, with heavy
duty flute construction and 135 split point.

Fractional Sizes

Size

Hole Diameter

Overall Length

P/N

Price Each

 
1/16" 0.0625" 1-7/8" D-1/16 $1.22
5/64" 0.0781" 2" D-5/64 $1.20
3/32" 0.0938" 2-1/4" D-3/32 $1.20
7/64" 0.1094" 2-5/8" D-7/64 $1.34
1/8" 0.1250" 2-3/4" D-1/8 $1.58
9/64" 0.1406" 2-7/8" D-9/64 $1.64
5/32" 0.1562" 3-1/8" D-5/32 $1.80
11/64" 0.1719" 3-1/4" D-11/64 $1.96
3/16" 0.1875" 3-1/2" D-3/16 $2.18
13/64" 0.2031" 3-5/8" D-13/64 $2.58
7/32" 0.2188" 3-3/4" D-7/32 $2.76
15/64" 0.2344" 3-7/8" D-15/64 $2.98
1/4" 0.2500" 4" D-1/4 $3.10
17/64" 0.2656" 4-1/8" D-17/64 $3.70
9/32" 0.2812" 4-1/4" D-9/32 $3.88
19/64" 0.2969" 4-3/8" D-19/64 $4.64
5/16" 0.3125" 4-1/2" D-5/16 $4.96
21/64" 0.3281" 4-5/8" D-21/64 $5.42
11/32" 0.3438" 4-3/4" D-11/32 $5.94
23/64" 0.3594" 4-7/8" D-23/64 $7.04
3/8" 0.3750" 5" D-3/8 $7.12
25/64" 0.3906" 5-1/8" D-25/64 $8.16
13/32" 0.4062" 5-1/4" D-13/32 $8.52
27/64" 0.4219" 5-3/8" D-27/64 $9.38
7/16" 0.4375" 5-1/2" D-7/16 $9.60
29/64" 0.4531" 5-5/8" D-29/64 $11.50
15/32" 0.4688" 5-3/4" D-15/32 $11.70
31/64" 0.4844" 5-7/8" D-31/64 $12.74
1/2" 0.5000" 6" D-1/2 $12.06

Wire Sizes

Size

Hole Diameter

Overall Length

P/N

Price Each

 
#60 0.0400" 1-5/8" D-60 $1.52
#59 0.0410" 1-5/8" D-59 $1.70
#58 0.0420" 1-5/8" D-58 $1.66
#57 0.0430" 1-3/4" D-57 $1.52
#56 0.0465" 1-3/4" D-56 $1.52
#55 0.0520" 1-7/8" D-55 $1.34
#54 0.0550" 1-7/8" D-54 $1.34
#53 0.0595" 1-7/8" D-53 $1.34
#52 0.0635" 1-7/8" D-52 $1.22
#51 0.0670" 2" D-51 $1.22
#50 0.0700" 2" D-50 $1.22
#49 0.0730" 2" D-49 $1.22
#48 0.0760" 2" D-48 $1.22
#47 0.0785" 2" D-47 $1.22
#46 0.0810" 2-1/8" D-46 $1.22
#45 0.0820" 2-1/8" D-45 $1.22
#44 0.0860" 2-1/8" D-44 $1.22
#43 0.0890" 2-1/4" D-43 $1.22
#42 0.0935" 2-1/4" D-42 $1.22
#41 0.0960" 2-3/8" D-41 $1.24
#40 0.0980" 2-3/8" D-40 $1.28
#39 0.0995" 2-3/8" D-39 $1.28
#38 0.1015" 2-1/2" D-38 $1.24
#37 0.1040" 2-1/2" D-37 $1.42
#36 0.1065" 2-1/2" D-36 $1.34
#35 0.1100" 2-5/8" D-35 $1.42
#34 0.1110" 2-5/8" D-34 $1.42
#33 0.1130" 2-5/8" D-33 $1.42
#32 0.1160" 2-3/4" D-32 $1.46
#31 0.1200" 2-3/4" D-31 $1.48
#30 0.1285" 2-3/4" D-30 $1.48
#29 0.1360" 2-7/8" D-29 $1.58
#28 0.1405" 2-7/8" D-28 $1.64
#27 0.1440" 3" D-27 $1.72
#26 0.1470" 3" D-26 $1.72
#25 0.1495" 3" D-25 $1.74
#24 0.1520" 3-1/8" D-24 $1.96
#23 0.1540" 3-1/8" D-23 $1.92
#22 0.1570" 3-1/8" D-22 $1.92
#21 0.1590" 3-1/4" D-21 $1.76
#20 0.1610" 3-1/4" D-20 $1.84
#19 0.1660" 3-1/4" D-19 $1.92
#18 0.1695" 3-1/4" D-18 $1.98
#17 0.1730" 3-3/8" D-17 $2.16
#16 0.1770" 3-3/8" D-16 $2.22
#15 0.1800" 3-3/8" D-15 $2.32
#14 0.1820" 3-3/8" D-14 $2.32
#13 0.1850" 3-1/2" D-13 $2.32
#12 0.1890" 3-1/2" D-12 $2.44
#11 0.1910" 3-1/2" D-11 $2.44
#10 0.1935" 3-5/8" D-10 $2.44
#9 0.1960" 3-5/8" D-9 $2.44
#8 0.1990" 3-5/8" D-8 $2.44
#7 0.2010" 3-5/8" D-7 $2.44
#6 0.2040" 3-3/4" D-6 $3.18
#5 0.2055" 3-3/4" D-5 $3.18
#4 0.2090" 3-3/4" D-4 $3.18
#3 0.2130" 3-3/4" D-3 $3.18
#2 0.2210" 3-7/8" D-2 $3.38
#1 0.2280" 3-7/8" D-1 $3.38

Letter Sizes

Size

Hole Diameter

Overall Length

P/N

Price Each

 
A 0.234" 3-7/8" D-A $3.26
B 0.238" 4" D-B $3.44
C 0.242" 4" D-C $3.44
D 0.246" 4" D-D $3.44
E 0.250" 4" D-E $3.10
F 0.257" 4-1/8" D-F $3.76
G 0.261" 4-1/8" D-G $3.76
H 0.266" 4-1/8" D-H $4.20
I 0.272" 4-1/8" D-I $4.20
J 0.277" 4-1/8" D-J $4.20
K 0.281" 4-1/4" D-K $4.70
L 0.290" 4-1/4" D-L $4.70
M 0.295" 4-3/8" D-M $5.06
N 0.302" 4-3/8" D-N $5.08
O 0.316" 4-1/2" D-O $5.62
P 0.323" 4-5/8" D-P $5.98
Q 0.332" 4-3/4" D-Q $6.06
R 0.339" 4-3/4" D-R $6.08
S 0.348" 4-7/8" D-S $7.58
T 0.358" 4-7/8" D-T $7.58
U 0.368" 5" D-U $7.58
V 0.377" 5" D-V $8.68
W 0.386" 5-1/8" D-W $8.68
X 0.395" 5-1/8" D-X $8.68
Y 0.404" 5-1/4" D-Y $8.68
Z 0.413" 5-1/4" D-Z $10.06

 

 

CoKiD Home

Standard Series - Extended Series - Mini Series

Hex Nut Series - Wing Nut Series - Accessories

Drill Bits - Shipping and Payment Terms