Are you looking to replace your Harbor Freight tube roller drive axle with a keyed, high strength 4130 chromoly steel shaft, or over time have you fatigued and/or bent the SWAG drive axle? If you plan on using this shaft with your Harbor Freight dies, keep in mind that you will need to broach a 6mm x 3mm keyway in the three center drive dies to accept the 6mm x 6mm key stock. However, going from securing the center drive roller with set screws to using a key stock is well worth the investment and time.
When switching the drive roller to a keyed drive axle, the center drive roller will always move in a circular motion as opposed to the set screws that push the roller away from the drive axle on three sides. This creates an oblong circular pattern that naturally pushes your material you are rolling harder to one side causing the material to twist.
I have no issue with these dies themselves. They are high quality. I had a bit of trouble getting the key way of the axle and the main die aligned. They were a bit tight, which is much more desirable than too loose!
My only issue was not the dies, but the HF bender. The distance between the lower dies are too far for me to achieve the curve I needed. Again, this isn’t a problem with the dies themselves.
It takes a lot of torque to roll that 2x2 tubing into a four foot radius for a arch top for a gate
The dies we purchased for a job worked perfectly! Looking forward to more purchasing from SWAG.
The axle itself is solid and well made. The square bar that gets inserted into the axle for the screws from the drive roller to set into, however, was too big to fit into the drive roller bearing and had to be ground down. Not a big deal, and not a complaint. Just be aware that if you buy this part, this may be the case. Everything that I have purchased from SWAG has been rock solid and very reasonably priced with fast shipping, so I wasn't too worried about it. I understand the reason behind the size of the bar as well, based on other reviews. I'll definitely keep coming back.
Great service great product, priced well makes my bender work even better.