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Jobber - Heavy Duty - Letter Sizes

Triumph superior quality high speed steel jobber drills in letter sizes from A to Z.  We offer a wide variety of sizes to make sure you get what you need to finish your job.  Coated in black oxide for a harder finish that will reduce corrosion.  Special heavy duty design for a long-lasting tool  135 degree split point helps prevent scarring and walking which can permanently damage a project.

Triumph Twist Drill General Purpose Jobber Drill - Black Oxide   Point: 135° Split Point
  Material: High Speed Steel
  Coating/Finish: Black Oxide
  Other: Heavy-Duty Construction

 

SizeDecimal EquivalentFlute LengthOverall LengthPkg QtyPart #
A 0.234 2-5/8 3-7/8 12 013401
B 0.238 2-3/4 4 12 013402
C 0.242 2-3/4 4 12 013403
D 0.246 2-3/4 4 12 013404
E 0.25 2-3/4 4 12 013405
F 0.257 2-7/8 4-1/8 12 013406
G 0.261 2-7/8 4-1/8 12 013407
H 0.266 2-7/8 4-1/8 12 013408
I 0.272 2-7/8 4-1/8 12 013409
J 0.277 2-7/8 4-1/8 12 013410
K 0.281 2-15/16 4-1/4 12 013411
L 0.29 2-15/16 4-1/4 12 013412
M 0.295 3-1/16 4-3/8 12 013413
N 0.302 3-1/16 4-3/8 12 013414
O 0.316 3-3/16 4-1/2 6 013415
P 0.323 3-5/16 4-5/8 6 013416
Q 0.332 3-7/16 4-3/4 6 013417
R 0.339 3-7/16 4-3/4 6 013418
S 0.348 3-1/2 4-7/8 6 013419
T 0.358 3-1/2 4-7/8 6 013420
U 0.368 3-5/8 5 6 013421
V 0.377 3-5/8 5 6 013422
W 0.386 3-3/4 5-1/8 6 013423
X 0.397 3-3/4 5-1/8 6 013424
Y 0.404 3-7/8 5-1/4 6 013425
Z 0.413 3-7/8 5-1/4 6 013426
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