(Loring kindly obtained and mailed 2 Feather wheels to me 
)
As supplied, they came with 3/8" carriage bolts/knobs and "bushings" (very sloppy fit).
I found a 1/2" hex head bolt (no second bushing), was a better fit.
BTW In Oz, 1/2" nickel plated brass dome nuts are A$5 EACH
The trick is to get the wheel close enough to (in this case the router fence), to be useful. 5/8" plywood was as thin as I could go and still allow enough thickness to inset the hex head and support the bolt.
This thing is very comforable to use - much less aggressive than a regular featherboard. As with all mechanical clamps, IMHO, much less pressure than you think, is required to be effective. In this case only about 1/8" wheel compression.
Unless you have a "very thick" workpiece, I can't see how one of these could be used for Hold-in use.
)As supplied, they came with 3/8" carriage bolts/knobs and "bushings" (very sloppy fit).
I found a 1/2" hex head bolt (no second bushing), was a better fit.
BTW In Oz, 1/2" nickel plated brass dome nuts are A$5 EACH
The trick is to get the wheel close enough to (in this case the router fence), to be useful. 5/8" plywood was as thin as I could go and still allow enough thickness to inset the hex head and support the bolt.
This thing is very comforable to use - much less aggressive than a regular featherboard. As with all mechanical clamps, IMHO, much less pressure than you think, is required to be effective. In this case only about 1/8" wheel compression.
Unless you have a "very thick" workpiece, I can't see how one of these could be used for Hold-in use.
- that's why Loring got them for me.
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