3/4" Low Profile Pyramid Top Hole Plugs Fits a 1/2" Hole (12, White Oak) Who says you can't fit a square peg into a round hole? No need to chisel out a square hole! These plugs fit a standard 1/2 hole Just glue, line up and press into place. It's that easy! For that turn of the century Arts & Crafts look. Easily create a through tenon look.