An angle drilling jig will help do the job.
My Drilling jig recently got featured on Popular Mechanics.
When you cannot angle your drill press table you have to rig something up. Having a jig would be the best. This jig is simple to make, adjusts up to 45-degrees and locks easy.
Wood- Small piece plywood 1x4', 3/4 inch
Hardware-4 trim head screws
1 foot of 3/8"threaded Rod
A Dowel Stop Gauge is used to measure the drill press table top (195cm) then transferred over to the table saw to set the fence.
The sides are traced from a previous jig I made. This was for the
Candle and match holder to drill angled holes for the matches.
At first glance the angle hole looks difficult to drill, but using the jig made it very easy.
The pieces are laid out..... now the fun part of putting it all together.
Trim head screws are used for the tabletop, the small diameter head allows for a somewhat clean finish. The other screw shown is a regular wood screw and these would always have to be countersunk.
These screws resemble a finish nail in appearance and function. A
permitting the screw to be countersunk like a finishing nail.
To make the clamp a 1 foot 3/8" threaded rod is used, it is cut to size and the ends are cleaned up with a belt sander. This will help so the nuts will go on freely.
Wooden knobs with nuts inserted are used for the
threaded rod. These are homemade but local hardware
stores sell similar types.
A pencil was taped onto the bottom board and the board was raised and lowered to give an outline for the slot. A compass would be difficult to use since the center would be the end of the side.
After it was marked the sides are taken apart and a slot was drilled and cut on both of the pieces.
Some spacers were added to the rod to make clearance for the table top.
Setting it up and testing it out. A block and clamps are used for support for the workpiece. The jig was tested on several scrap boards, different angles and positions were tried and everything turned out great.