Levoite™ Precision Router Table Lift for Motor Router — levoite
Amazon.com: O'SKOOL Motorized Router Lift Systems for 3-1/2" Diameter Motors, 9-1/4'' x 11-3/4'' Plate 5-Piece Insert Ring Kit : Tools & Home Improvement
JessEm Mast-R-Lift II Standard 9-1/4" x 11-3/4" Top Plate - Midwest Technology Products