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Jobber - ThunderBit - Letter Sizes

Triumph ThunderBit heavy duty drill bits are made from premium grade high speed steel to endure high heat and pressure.  Finished in black and bronze oxide to  resist scratching and corrosion.  135 degree split point avoids walking or scarring on the surface of products.  Unique spiral flute design improves chip ejection and coolant flow to the point.  Letter Sizes from A-Z.

triumph-logo-thunderbit.jpg

Triumph Twist Drill ThunderBit

 

ThunderBit® High Performance drills are made from industrial grade steel.

Unique spiral flute design improves chip ejection and coolant flow to the point.

Point: 135° Split Point
Material: Premium Grade High Speed Steel
Coating/Finish: Black and Bronze Oxide
Other: Heavy-Duty Construction

 

SizeDecimal EquivalentFlute LengthOverall LengthPkg QtyPart #
A 0.234 2-5/8 3-7/8 12 012701
B 0.238 2-3/4 4 12 012702
C 0.242 2-3/4 4 12 012703
D 0.246 2-3/4 4 12 012704
E 0.25 2-3/4 4 12 012705
F 0.257 2-7/8 4-1/8 12 012706
G 0.261 2-7/8 4-1/8 12 012707
H 0.266 2-7/8 4-1/8 12 012708
I 0.272 2-7/8 4-1/8 12 012709
J 0.277 2-7/8 4-1/8 12 012710
K 0.281 2-15/16 4-1/4 12 012711
L 0.29 2-15/16 4-1/4 12 012712
M 0.295 3-1/16 4-3/8 12 012713
N 0.302 3-1/16 4-3/8 12 012714
O 0.316 3-3/16 4-1/2 6 012715
P 0.323 3-5/16 4-5/8 6 012716
Q 0.332 3-7/16 4-3/4 6 012717
R 0.339 3-7/16 4-3/4 6 012718
S 0.348 3-1/2 4-7/8 6 012719
T 0.358 3-1/2 4-7/8 6 012720
U 0.368 3-5/8 5 6 012721
V 0.377 3-5/8 5 6 012722
W 0.386 3-3/4 5-1/8 6 012723
X 0.397 3-3/4 5-1/8 6 012724
Y 0.404 3-7/8 5-1/4 6 012725
Z 0.413 3-7/8 5-1/4 6 012726
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