High Speed Steel Straight Shank Core Drills
TTC PRODUCTION High Speed Steel Taper Shank Core Drills - Overall Length : 9   Flute Length : 5-1/8   Morse Taper:    Flute Shape: Normal spiral - helical flutes   Manufacturing Method: Cylindrically ground   Size : 21/32

High Speed Steel Straight Shank Core Drills

Item #: 01-129-042
Size: 21/32"
Shank: Straight
Tool Material: High Speed Steel

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For enlarging existing punched or drilled holes


  • For enlarging existing punched or drilled holes.
  • Straight shank is to be used in a chuck or collet and sized proportionally to the drill diameter.
  • Used with either portable or stationary machines.
  • For enlarging holes in normal steels, cast iron, and a variety of other ferrous and non-ferrous metals and alloys.
  • For optimal performance and extended tool life, use of suitable lubricating/cutting oils or appropriate coolant fluids is recommended.


  • Right hand (clockwise rotation) cutting direction.
  • Standard 3 or 4 flute design.
  • Normal spiral - helical flutes.
  • Straight shanks that correspond to the drill diameter.
  • Normal length drills have flutes proportional to length.

Technical Data

  • Cylindrically ground.
  • Normal duty, general purpose core drills.
  • Bright finish.


  • Drills do not have a cutting point and are not Intended to drill initial holes.
  • 3 or 4 flute drills will be shipped depending on our stock.
TTC PROD A27S HSS Ground Bright Fractional Straight Shank Core Drills
Product Specifications
Size 21/32"
Shank Straight
Tool Material High Speed Steel
Drill Grade General Purpose
Drill Type Core drills
Finish Coating Bright Finish
Flute Length 5-1/8"
Flute Shape Normal Spiral - Helical
Hardness 58 to 60 RC
Manufacturing Method Cylindrically ground
No. of Flutes 3 or 4 flute
Series A27S
Shank Style Straight Shank
Type High Speed Steel Taper Shank Core Drills
Weight 0.71 lbs.
Country of Origin Import

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