Collet adapter bushings?

[gundog]

Have any of you tried these adapter bushings by MLCS? I just bought a set but have not tried them.
Mike

http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/pages/bushing_ball_bearings.html

[waterwheelman]

Mike, I use the same adaptors from MLCS. They work fine.