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ISO 3294:2016

Parallel shank countersinks for angles 60, 90 and 120 degrees inclusive ISO 3294:2016

Publication date:   Jul 21, 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 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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3294:1975

NOW

PUBLISHED
ISO 3294:2016
90.93 Standard confirmed
Mar 27, 2023