Skip to main content

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
!

Sign up for our Newsletter

Subscribe and save 10% on your first order! Stay updated with the latest coffee blends, brewing tips, and exclusive promotions – all delivered to your inbox.

By completing this form, you are signing up to receive our emails and can unsubscribe at any time.