book dossiê das brocas Helicoidais

https://drive.google.com/file/d/1pHnxYGOLBDlfJmMWIfJV93hfuNpBvuQv/view

Há um catálogo bem interessante sobre essas ferramentas:
https://ae.milwaukeetool.eu/NetC.MilwaukeeTools/media/MediaLibrary/Downloads/04_Milw_Accessories_Cat_2016-17_UK_Screen_11-1.pdf