Guarded bearings

On a frantic search for metallic objects all
Of legend and folklore like a no neck cannon ball
Then all at once again three of them pull through
Koil with a hook and chain that Jay just had to use
It's good to have guarded friends that live on a farm
When they come bearing metal it adds great charm
The guards protect the serrated sectioned blade
The bearings facilitate movement implementing aid
Various pieces found from two different places
Heavy, unique some are round, one with historic traces
Jay provides the guards, Dallas the pick and bearings
A cellanoid and objects hard, no access to gold fillings
I am grateful for metallic objects all
This time I really scored a three for one beckoned call