TTC PRODUCTION 01-080-137 37/64" Size 118° Cobalt Silver & Deming Drill

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Item #
  • Size Type: Fractional
  • Size: 37/64"
  • Shank Size: 1/2"
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Product Specifications
More Information
Type Cobalt Silver & Deming Drills
Tool Material Cobalt
Finish Coating Black Oxide With Polished Flutes
Overall Length 6"
Size Type Fractional
Size 37/64"
Drill Point Angle 118°
Shank Size 1/2"
Model # 01-080-137
Point Sharpening Type Standard Point
Flute Length 3-1/8"
Decimal Size .5781"
First Choice For: Stainless Steel
Flute Shape Helical
No. of Flutes 2
Prop. 65 Yes
Series A15-C0
Shank Style Reduced Shank
Weight 0.188 lbs.
Workpiece Material Range Steel, Stainless Steel, High-Temp Exotic Alloys, Non-Ferrous, Cast Iron, Plastics
Country of Origin IMPORT

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.

Reduced Shank Drills from TTC for Heavy-duty Applications. TTC Production presents its 1/2 inch reduced shank Silver & Deming Drills for most high-performance applications. The heavy-duty cobalt steel core guarantees increased strength and reduced breakage. The unique two-flute, spiral design improves chip ejection and coolant flow to the point. 118� self-centering split point offers aggressive cutting. All drill bits offered in this series are surface treated and appear to have a black oxide coating. It helps in significantly reducing friction and thereby, offers higher feed rates. The lower helix angle of 30� can wrap slowly and is used in drilling hard materials including brass. Silver & Deming drills from TTC are offered in over 50 different sizes ranging from 33/64 inch to 1-1/2 inches with an overall tool length of 6 inches. Additionally, an 8-piece set is offered in a sturdy plastics box and drills of fractional sizes 9/16 inch, 5/8 inch, 11/16 inch, 3/4 inch, 13/16 inch, 7/8 inch, 15/16 inch & 1 inch. The models have 3 flats on the shank to provide superior grip in heavy-duty applications. All the listed TTC products are globally sourced and meet standard ANSI tolerances and requirements. A wide range of TTC Production tools are on offer here. They undergo a strict quality check before they are listed on the product catalog. This brand offers quality affordable American-made tooling with the superior speed and feed that your applications require. TTC Tools are now a top choice for common materials, short-run jobs, and general-purpose projects.
Can be used in electric drills and drill presses with 1/2" capacity drill chuck


  • Cobalt offers better wear resistance, higher hot hardness & toughness when compared to high speed steel.
  • Cobalt also provides less chipping under severe cutting conditions allows tool to be run 10% faster than high speed steel.
  • Primarily designed as tools for heavy duty drilling of larger holes requiring reduced diameter straight shank drills.
  • Suitable for most drilling operations in a wide array of materials having low and medium tensile strength ratings.
  • Intended for those applications where only a 1/2" chuck is available to drive the drills.
  • May be used with a wide range of portable or stationary machine tools and with hand held manual drills.
  • For optimal performance and the best tool life suitable lubricating/cutting oils or the appropriate coolant fluids are recommended.


  • Right hand (clockwise rotation) cutting direction.
  • Standard two flute design.
  • Standard spiral, helical flutes.
  • All drills have reduced shanks that are 1/2" in diameter.

Technical Data

  • Manufactured from cobalt steel.
  • Surface treated.
  • Black and bright finishes.


  • Special care should be exercised to avoid bending or shearing the reduced diameter drill shank.


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