Thread forming with centertap is the ideal completion of the flow drilling process. After producing the hole/bush we form the DIN-thread in second step. Please note, the thread will be formed, no cutting! It is a chip- less process in which the material is rendered flowable and displaced from the thread root into the crests. It is similar in principle to the rolling of external threads. The Centertap threadformer is a HSS-E tool and available for all common thread sizes as M, MF, BSP, UNC, UNF, etc. The range includes centertaps with and without lubrication flutes, as well as TIN and TiCn coating.
Centertap thread forming in practice => Video
Here you will find the required process data => Centerdrill Explorer.
During thread forming we recommend to use our Centertap-lubricant.
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Centerdrill GmbH
Valterweg 19
D-65817 Eppstein
Tel. +49 (0) 6198/5858-97
Fax. +49 (0) 6198/5858-99
Mail: info@centerdrill.de
Tel. +49 (0) 6198/5858-97
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Mail: support@centerdrill.de
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