CMT 551-057X Bi-Metal Plus Hole Saw 2-1/4" (57mm) Siding/Fencing/Trim Nails standoff elevates the bottom of

standoff elevates the bottom of the post off the concrete surface

Heavy utility strapping where a decorative finish is required

Tooth Geometry Through holes 60

070 is a 7 diameter 2 Flute Dowel Drill (Short Series (57

CMT 551-057X Bi-Metal Plus Hole Saw 2-1/4" (57mm) Siding/Fencing/Trim Nails standoff elevates the bottom ofThe CMT 551 057X is a 2 1 4" (57mm) 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 2 1 4" (57mm) Blade Material Bi Metal (BIM) 8% Cobalt Tooth Pitch Variable 4 6 TPI (alternate and side set) System XTREME FAST Push&Lock Arbor