Tandem roll groover

Tangential rolling attachment for a machine tool

Tangential rolling head

Tangential rolling head

Tangential rolling head

Tangential thread rolling head

Tangential thread-rolling head

Tap employing deformation of matter

Tapered rolled thread bar joint

Tapered thread roll-forming machine

Testing and straightening machine

Thin-wall spline forming

Thin-wall spline forming machine

Thin-walled metal duct having integral reinforced ends for joini

Thread forming method and apparatus

Thread forming method, thread forming device, and thread...

Thread roll attachment

Thread roll timing

Thread rolling apparatus

Thread rolling attachment