----------------------- Which is why I posted my previous mea culpa.
Given your bench is only 1-3/4" thick, a 3/4" x 2", 2 blade straight cut router bit with 1/2" shank shouldn't have a problem clearing the chips.
If it were 3"-4" thick, different story, but it's only 1-3/4", different story.
Just make sure to use ac backer to eliminate tear out.
Lew