Countersinking bolts

squamishdroc

Any ideas on how I can countersink these bolts into the baffle? I already drilled the 1/4" holes in the baffle for the bolt to pass thru but looking back I think I should have drilled the countersink part first then the thru hole. The bolt head is just over 5/8" in diameter. I have tried using my forstner bits and flat wood bits but they don't work well because I have already drilled the 1/4" hole so they can't center themselves on the small tip on the bits.

Face

You're going to have to make a jig with a forstner bit, then use a router to make the recess.  It will also help prevent tear out.

kennyk

1/4" dowel?

PWRRYD

I would try Kenny's idea.  Insert 1/4" dowels, cut to proper length, then center drill those with an 1/8" guide hole to keep your forstner bit centered.

JasonP

I'm an amateur woodworker, but what would stop you from clamping down the piece and then using a drill press with a forstner bit to drill the hole?

kennyk

You could use a mortising router bit in a plunge router.

jhollander

I've got an old manual pencil sharpener which works great to put a taper on 1/4 inch and 5/16 dowels, add some glue, tap tight, saw off with a flush cut saw.

squamishdroc

I will try the dowel and forstner bit idea this weekend. Thanks guys!!

D1PP1N

Forstner is the way to go! Plus it makes an automatic Center punch hole for your bit. Without a drill press I wouldn't try the forstner without filling the previous hole.