Reply by Red Rocks School of Fine Woodworking

If I understand this correctly, like Moai just posted, you want holes 3/8” deep, and 3/4” diameter – use a forstner bit and a drill press. If you don’t have a drill press use a hand-held drill, but first drill through some 3/4” scrap sheet good to use as a jig. Clamp the sheet good on your picture frame and use it to hold your bit in the right spot while you drill. That way you don’t have to worry about slipping and messing up your picture frame. For your depth of 3/8” just take it easy, and you can sneak up on all four holes, of course if you have a drill press just set the stop on it.

-- Rand Richards, Wood.Shop@mac.com, wood-shop.org