Extra Length Drill
Viking Type XGT-UB 13/64 9 Flute & 12 Overall Length Premium High Speed Steel 135? Split Point Extra Long Parabolic Drill

Extra Length Drill

Made In The USA
Item #: 01-139-013
Size Type: Fractional
Size: 13/64"
Overall Length: 12"

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Will drill 12 or more diameters deep without drill removal to clear chips


  • Heavy-duty construction, 135° split point, no center punch needed- will not walk.
  • Feeds rates twice that of standard drills.


  • Recommended for work hardening grades of stainless steel and other hard metal drilling applications.
  • Gyroidal Torsion flute and wide land construction yields exceptional performance in deep hole drilling applications.
  • Although (UB) Ultra bore drills will substantially outperform cobalt drills in most stainless steel, it is recommended that cobalt drills to used in the machining of free machining stainless steels such as 400 series & 303 materials along with titanium alloys.


  • Gold surface treated for maximum lubricity.
  • Special Hi-Molybdenum tool steel.
Viking 53170 13/64" x 12" OAL HSS 135° Parabolic Flute Extra Long Drill
Product Specifications
Size Type Fractional
Size 13/64"
Overall Length 12"
Drill Point Angle 135°
Tool Material High Speed Steel
Finish Coating Black & Gold
Drill Grade M2 Special Hi-Molybdenum Tool Steel
Drill Type Extra Length
Flute Length 9"
Hardness 58 to 60 RC
Manufacturing Method Standard
No. of Flutes 2
Prop. 65 Yes
Series Type XGT-UB
Shank Style Straight Shank
Type Extra Length Drill
weight 0.264 lbs
Prop 65 Warning Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.

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