Hi all. Im just countersinking the #8 screw holes for the tank on my 7. Im following the instructions as per vans recommendations of using a #30 counter sink as the pilot, Im countersinking to an outside diameter of .370 but it appears as though the hole is being enlarged and leaving a sharp edge at the bottom of the countersink. Ive looked at the builders sites and searched the force but didn't find the exact answer Im looking for. The countersinks come out looking very clean and the bit is not hunting but it seems as though to get the .365-.375 you need to go deeper than the .063 spar. is this true?
Thanks Trevor
Thanks Trevor