About Us

Sinertik Ltd. is a company that specializes in selling and representing the strongest brands of friction materials, and manufacturing of special clutches with specific purposes and requirements.

The company has extensive experience in serial production of entirely new clutch discs.We have discontinued serial production, and proceeded selling the highest quality materials as well as specific purpose clutches (sport, tractor and truck clutches). We consider ourselves not only dealers, but experts in materials with great experience in manufacturing.  Read more...

Contact us

TEL: +385 95 827 52 01
TEL: +385 95 531 11 77

If mobile phone is notavailable
please call us at:

TEL: +385 1 777 69 93
or send your inquiriesto:


Step drill bit

Step drill ( Frezenk drill bits ) with special material for long life. Much greater step drill usability.


Step drill are used in serial production of clutch disk.
These step drill can be used with all friction materials, clutch facings, brakes, friction segments and plates.


Ø 4 mm / 8.5 mm
Ø 5 mm / 10.5 mm
Ø 6 mm / 12.5 mm


The prices depend on the quantity of order and continuity of cooperation. For all information send us an e-mail to This email address is being protected from spambots. You need JavaScript enabled to view it. specifying the dimensions, quantity, cooperation plan and information about your company.