Step 12: Drill pilot holes and put in screws
From WormWiki
by Amy Youngs
After glueing, you'll need to strengthen these connections with screws. In this main pic, I have clamped my wood together and am measuring my countersink drill bit for the pilot hole. I don't want the bit to go all the way through, just about an inch and and a quarter, to match the length of my screws. After measuring, drill the pilot hole. If you don't have the countersink drillbit like me, you can use a plain countersinker bit, or even just use a large drill bit to make the divet for the screw head to be flush.
Now change to the philip's head screw driver bit and put your first screw in.
Then, repeat process - pilot hole drilling and screwing - on the other side.
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