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ISO 3293:2016

Morse taper shank countersinks for angles 60 degrees, 90 degrees and 120 degrees inclusive ISO 3293:2016

Publication date:   Jul 25, 2016

General information

90.93 Standard confirmed   Mar 27, 2023

ISO

ISO/TC 29/SC 9 Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces

International Standard

25.100.30   Drills, countersinks, reamers

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Published

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Scope

ISO 3293:2016 specifies the dimensions of Morse taper 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 16 mm to 80 mm.
The dimensions given 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.
The Morse taper shanks are in accordance with ISO 296.
Unless otherwise indicated, the countersinks will be right-hand cutting.
Parallel shank countersinks are the subject of ISO 3294.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3293:1975

NOW

PUBLISHED
ISO 3293:2016
90.93 Standard confirmed
Mar 27, 2023