Combines F2 Bars used to hyperize

I used a old Massey cyl. bar I found in the shed with the use of a chop saw I got it to fit real nice. Just a thought. Bob

An F would use the same bars as an F2.I had rasp concave bars in an A2 so I imagine they were available for all the conventionals other than M's and l's.They would have just been made in different lenghts.The guys who started the use of F2 bars were just looking for something quick and handy to stick in there to stir things up.The F2 bar was on the shelf and looked like it would do what they wanted so that's how it got started. As "brassring" did,you could use about any kind of a rasp type bar that you could fit in there.

I used a JD 95 rub bar. We specialize in SOH construction. (Something on hand)