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wd40 is not very good lube for bending ....
you should use any type of heavy grease ..
clean your tube and keep your die clean , also lots of grease on the backing die ...
 

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they do make benders with roller following dies . manufacturers build the slide type ie. pro_tools 105 and jd3 to keep cost down .
pro_tools also makes the hb302 bender with roller follower .
with that said the ercolina is one of the sweetest benders you can buy for 10,000 dollars and it uses the same type of non roller friction backing die set up as jd and pro-tools . although it is made from brass ..
the question is ........ how much do you want to spend
hb302 without the pump cost 550.00

also making the backing die harder will only cause more galling

alan


liveaxle said:
Why don't tube bending manufacturers make the following die roll along the tube instead of making it slide?

Also, it seems that JD2 needs to make their dies harder, or at least at the surface.
 

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the hb302 will only do a 90 degree bend
pro-tools has in the works to be released soon a one shot type bender like the hb302 the will do a 180 degree bend in a single stroke . look to spend between 3500-4500 dollars for it

here is another pic of the mb302
 

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