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 ordered and put together the Harbor Freight Tube Roller with the wings, bottle jack, additional dies and pipe threader but had made the mistake thinking the shaft was included with the dies (didn't read the fine print). Sent an email and got a call back from them on a Saturday - the shaft arrived the following week (delayed a bit by shipping woes I suppose) but is now fully assembled and working great!!!!! Thanks SWAG Team
Shaft machine well. Comes with a 3.75 long by 6mm sq. key way. Note: as mention in literature will when need to cut an keyway slot in the stock Harbor Freight roller dies to use this drive axle. But also need to mention it will cost more in purchasing a keyway Broach set than just purchasing a new set of dies from Swag. Length of keyway slot is to long for a standard broach set!! Which will cost you dearly.
The stock drive shaft that came with the roller was slightly warped, probably from a heat treatment. It made for an annoying kind of clunky / wobbly motion when turning. This replacement axle from Swag was beautiful quality and straight as an arrow. Very well priced also. Thanks so much!
This item is exactly what I ordered. It came in good shape on time and just what I ordered.
This keyed drive axle is a big improvement over the stock drive axle. I keyed my original hf rollers and my tubing bends surprisingly straight now.