Tom- You need a Fuller C6 counterbore and a 3/16 bit. Jerry jerrymontgomery.org ----- Original Message ----- From: "Tom Smith" <tsmith@nextit.com> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Monday, December 26, 2005 1:45 PM Subject: RE: M_Boats: Restoration progress on 064 Some of you guys might know I'm restoring a '75 M17 aptly named 064. That's the number of either weeks, months, or years it will take to complete this mission. But never mind my pain. I recently removed all the woodwork to sand and refinish it. Don't know if this assembly method was SOP, but the wood pieces were attached with SS wood screws from the inside. I'm going to reattach using SS machine screws and nuts. Somebody refresh my memory about the type of drill I need to drill the bolt hole and countersink for the screw head and bung in a single operation please, and a recommended manufacturer. Thanks. t /)) Tom Smith & Jane VanWinkle M15/345--Chukar M17/496--Unnamed _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats