Page 356 - Carbide drills I Thread cutting tools 2023

Legend to the product page of thread cutting tools

Application classes / Tolerance positions
Tools of application class 2 (ISO 2) are designed for the production of threads with the tolerance fields
4G, 5G, 6H.

Tools of application class 1 (ISO 1) are designed for the production of threads with the tolerance fields
4H, 5H.

Tools of application class 3 (ISO 3) are designed for the production of threads with the tolerance fields
6G, 7H, 8H.

Tools of application class 7G are preventively designed for the production of threads with the tolerance
fields 7G, 8G, where subsequent heat treatment may cause dimensional distortions.

Tools of application class 2 (ISO 2) are designed for the production of threads with the tolerance fields
4G, 5G, 6H. For threads which will get a galvanic coating of 0.025 mm thickness the tools are designed
with an increased thread tolerance of 0.1 mm.
Tools of application class 4H are designed for the production of threads MJ with the tolerance field 4H
(ASME B1.1).

Tools of application 2B are designed for the production of threads with the tolerance field 2B.

Tools of application 6H are designed for the production of threads for inserts.

Cutting tool substrate material

High-performance cutting tool substrate material, powder metallurgically produced HSS alloys.

High-performance substrate material, conventionally melted HSS alloy. Co-content 5%.
HSS-E
Co5
Universal fine-grain carbide. Hardness 1600 HV. Co-content 10%.

Universal fine-grain carbide.

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