My friend that owns a glass company is building an in home office that is going to have glass walls and doors. He asked me to make them handles for the glass doors. He gave me the hardware which came pre mounted on 3/4 x 3/4 handles. All he told me was that the handles needed to be attached 16" on center. 
Here is a pic of the hardware:

The new handles will be 1 1/4 x 1 1/4 x 22 1/2
Since the hardware is made to slide over 3/4" material, I have to figure a way to make it work.
I decided to cut them in but didn't want the cuts showing in the front. So I will create a little pocket.
So what I decided was to make it in 2 pieces, the back piece will be 3/4 x 1 1/4 and after I cut in for the hardware I will add a 1/2 x 1 1/4 to the back piece. 
Pictures should explain it.

I notched both sides of the back piece,  then tilted the saw at 45 deg to bevel the edges of the cut out.

Here is the back piece with the notches cut and the sides 45'd

Here it is showing it with the hardware.

Next is to glue on the front piece:

After gluing, I cleaned them up on the wide belt sander. 

Next step was to taper the top and bottoms, I screwed a jig to my radial arm saw to make the cuts.

Then did the final sanding and a small 1/8" round over on the edges and I hand beveled the very top and bottom.

Here they are after 2 coats of pre-cat sprayed and hardware mounted.

Side by side with the original handles I'm replacing.

Thanks for looking!