Can someone please advise the best way to make 1 1/2" tenons in length x 1/2'"in width on longer boards for a headboard. My material is 1 1/2" thick and the boards(rails) are 63" long x 7" wide. Too long for my little shop to do on the tenons on the table saw. And with the longer boards too hard to handle on a table, so I figure the best way is to make a jig to hold my material and cut a bit off each side to nibble it down to fit a 1/2" mortise. Any other ideas. Thanks