1/4"-100 Degree 3 Flute Countersink | HSS | 3/16" Round Shank | DEWCSK1/4-100
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1/4"-100 Degree 3 Flute Countersink | HSS | 3/16" Round Shank | DEWCSK1/4-100

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3/8"-90 Degree 3 Flute Countersink | HSS | 1/4" Round Shank | DEWCSK3/8-90

Drill AmericaSKU: DEWCSK3/8-90
Price:
$6.04per 1( $6.04 each)
Pieces 1
Measurement type Inch
Diameter 3/8"
Length 1-3/4"
Material High Speed Steel
Finish Uncoated (Bright)
Number of flutes 3
Shank Round
Shank size 1/4"
Size 3/8"-90
Weight 2.98 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Industrial countersinks manufactured in High-Speed Steel for precision countersinking in metalworking and fabrication. This 3/8″ diameter countersink features a 90° angle, 3 flutes, and a 1/4″ round shank designed for compatibility with standard milling holders and CNC collets.

Specs

  • Diameter: 3/8″
  • Countersink angle: 90°
  • Flutes: 3
  • Shank: 1/4″ round
  • Drive type: Round shank
  • Material grade: HSS

Features

  • Three-flute design: Improves chip evacuation and provides a cleaner finish in metal and plastic during countersinking operations.
  • 90° countersink angle: Enables flush seating for standard flat-head screws and consistent countersink depth.
  • Material: High-Speed Steel (HSS) offers hardness and heat resistance for repeated tool life at typical machining speeds.
  • Shank interface: 1/4″ round shank provides compatibility with common milling and CNC tool holders, ensuring secure grip and minimizing runout.
  • Applications: Suitable for creating flush countersinks in sheet metal, aluminum components, and plastic enclosures used in industrial equipment and assembly lines.

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800-222-0324

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