View Single Post
Unread 09-27-2014, 01:36 PM   #40
Member
Drew Hause
Forum Associate
 
Drew Hause's Avatar

Member Info
 
Join Date: Nov 2008
Posts: 2,305
Thanks: 386
Thanked 4,388 Times in 1,419 Posts

Default

Yes Mike, I believe it is. The edges of the Twist iron & steel alternees are 'mushroomed' by mechanical deformation/hammering.

Drew Hause is offline   Reply With Quote
The Following 2 Users Say Thank You to Drew Hause For Your Post:
Visit Drew Hause's homepage!