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You are here: Home > Cutting Tools > Drills - Drill Bits > Tin Coated Drills - Bits
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Heavy Duty TiN Coated Jobber Drills
Heavy Duty TiN Coated Jobber Drills

Titanium nitride (TiN) coating consists of a very hard surface hardness on the tool, approximately 80 Rockwell C. The hardness and lubricity reduces friction and improves chip flow at higher speeds and feeds, creating a superior hole finish. Ideal for production work or repetitive drilling. Can be used on most ferrous, non-ferrous and non-metallic materials.
 
 

Made in U.S.A.
ProBit STEP DRILL Sets
ProBit STEP DRILL Sets

Super high speed steel. Professional quality. 2 Flutes fractional multi-step sizes. Bright finish or TiN coated.
 
  • Drill up to 13 different hole sizes with one bit.
  • Balanced double flute eliminates chatter and vibration.
  • Self starting tip for easier drilling; even on curved surfaces.
  • Holes automatically deburred by the next cutting edge. 3 flats on shank prevent slipping in drill chuck.
  • Cutting edges can be re-sharpened.

STYLE NO. of STEPS SIZE RANGE SHANK SIZE OAL
A 13 1/8" - 1/2" (in 1/32nds) 1/4" 3"
B 6 3/16" - 1/2" (in 1/16ths) 1/4" 3-1/4"
C 9 1/4" - 3/4" (in 1/16ths) 3/8" 2-13/16"
D 1 1/2" 1/4" 1-7/8"
E 1 7/8" 3/8" 2-5/16"
F 8 9/16" - 1" (in 1/16ths) 3/8" 2-13/16"
G 10 13/16" - 1-3/8" (in 1/32nds) 1/2" 3"
H 1 3/8" 1/4" 1-3/4"
K 12 3/16" - 7/8" (in 1/16ths) 3/8" 3"
M 3 1/4" - 7/8" - 1-1/8" 1/2" 3"

 
Made in USA
   
 
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