With the expertise in the factors with the lathe machine, we can recognize the Functioning theory on the lathe. This stays widespread to all types of lathes with some minor modifications. Shank: The shank extends through the manage on the head with the screwdriver and it arrives in a number https://typesofcaliforniaroof04713.blog-gold.com/35991089/types-of-screw-heads-list-an-overview