CMT 551-057X Bi-Metal Plus Hole Saw 2-1/4" (57mm) Through Hole Bits Can be used for a

Can be used for a variety of applications where quick-to-install posts are needed

What corrosion protection does the MBHA3

Tri-Metal Silver Brazing Silver-Copper-Silver brazing prevents carbide from breaking and allows teeth to withstand high stress when cutting harder materials

It is compatible with a wide range of lumber

Install With: 16d common nails or 16d x 2 1/2" joist hanger nails (sold separately)

CMT 551-057X Bi-Metal Plus Hole Saw 2-1/4" (57mm) Through Hole Bits Can be used for aThe 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