Abstract Preview

ISO 3294:2016 specifies the dimensions of parallel shank countersinks for angles 60°, 90° and 120° inclusive.

It specifies dimensions in metric units only, these being regarded as the only recommended dimensions in the future, for countersinks with cutting diameters in the range 8 mm to 25 mm.

The dimensions apply only to tools made from high-speed steel. However, if the method of production allows, the shanks may be manufactured from a suitable alternative material, such as a carbon steel.

Unless otherwise indicated, the countersinks will be right-hand cutting.

Morse taper shank countersinks are the subject of ISO 3293.


General information

  • Status :  Published
    Publication date : 2016-08
  • Edition : 2
    Number of pages : 4
  • :
    ISO/TC 29/SC 9
    Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
  • 25.100.30
    Drills, countersinks, reamers

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