CMT 551-089X Bi-Metal Plus Hole Saw 3-1/2" (89mm) Face-Mount Hangers providing strength at the critical

providing strength at the critical connection point where the post meets the base

Reduced Reveal: Screw-based fastening system minimizes the exposed hardware profile at the base of the column

fewer blade changes and up to 25X longer life versus standard grinding discs

Outdoor Accents side plates are available separately

CMT 551-089X Bi-Metal Plus Hole Saw 3-1/2" (89mm) Face-Mount Hangers providing strength at the criticalThe CMT 551 089X is a 3 1 2" (89mm) Bi Metal Plus Hole Saw (Series 551X) with XTREME FAST Push&Lock system. The 8% Cobalt bi metal construction provides 2X longer cutting life than standard hole saws, and cuts stainless steel, steel, cast iron, aluminum, copper brass, and plastics. SPECIFICATIONS Diameter 3 1 2" (89mm) Blade Material Bi Metal (BIM) 8% Cobalt Tooth Pitch Variable 4 6 TPI (alternate and side set) System XTREME FAST Push&Lock Arbor