I used one similar to Dave's.It worked great for me,did lock bolts,tang bolts,thimble pins,pilot holes for keys.I did alter mine abit,had a buddy turn down the ends to the exact size of the thimble pins to avoid dimples in the wood.Be sure to work it from both sides too.If you don't have a drill press,one of these and a hand drill will get the job done.It does work better on flat,square stocks before its shaped.Pre carved stocks will reguire a little more care to keep the jig from moving because you don't want to crank it down to tight to cause deep dimples.
