WoodOwl 05304 5-1/2-Inch Selfeed Bit Extension

Fits the Wood Owl bits great.

I purchased this extension with a WoodOwl Tri-cut wood boring bit because the WoodOwl drill bits have such positive reviews. While the extension looks to be solidly constructed, and it is well balanced and rotates remarkably true in my drill, the set screw design could be improved. The setscrew is coarse threaded instead of fine threaded, which I believe would hold better, and it sticks out beyond the circumference of the extension when it is tightened against the drill bit. The extension would follow a 3/4" bit through the hole if the setscrew tightened flush. Also, the hex wrench supplied is machined a tad too small and it rounded out the first time I used it. (However, I did find another hex wrench that works) I will either have to find a shorter setscrew or a whole other extension where the setscrew tightens flush.

well made