FLOORING Bit # Size Wood Image CAD SI-4FF 3/4" x 3-1/8" Fir Yellow Pine Download DWG T SI-4FF1 1" x 3-1/8" Fir Download DWG SI-42A 3/4" x 2-3/8" Yellow Pine Download DWG SI-214F 3/4" x 2-1/4" Red Oak White Oak Download DWG