smknallday wrote:how are you supposed to drill something underwater..?
tbone420 wrote:im hoping he meant to keep the tip of the bit underwater. that is done to help keep the diamonds cool as weel as the glass
as for drill bits:
heres one i found on the web- 3/8" Cyclone Non-Coring Bit, 5/8" Threaded Arbor $48.00
i went with a 5/8 because the stem comes in at an angle making the need for a bigger hole