Thomas G. Marshall wrote:
: Chip Buchholtz said something like:
: > No, it's not. I bought it and tried to use it once. I couldn't
: > tighten the chuck enough to keep the bit from spinning.
: (???) Even with the key?
: It's annoying, to be sure. But the key couldn't clamp that thing
: down tightenough? At least most of my bits have a hex shank.....
OK, I went down to the shop to try it out again.
Using a 1/2" Forstner bit and a Craftsman cordless drill with a
keyless chuck, it did fine. The posts make it difficult to tighten
the drill's chuck. Attaching the drill is a three hand operation; I
found I needed to rest the jig base on the edge of a table so that I
could use two hands to tighten the chuck with everything lined up
The thing is reasonably solid for something that inexpensive. The
tops of the posts wiggle about 3/16" each way with moderate force.
I think my previous attempt was with a 2" Forstner bit; it worked with
my keyless drill, but didn't work with the jig. I don't remember
whether my drill's keyless chuck slipped on the jig, or if the jig's
chuck slipped on the bit.
The base has holes so you can screw it to a sheet of plywood or a jig
if you want.
It's not junk, and it may be a good solution for some problems.