CMT 551-105X Bi-Metal Plus Hole Saw 4-1/8" (105mm) Boring Bits The laser-cut stabilizer vents are

The laser-cut stabilizer vents are precision-cut into the blade body to trap noise and vibration during cutting

Shank (S) M10mm

What is the corrosion protection on this hanger

Usage: Decking and Siding

What fasteners are required to install the HD9B

CMT 551-105X Bi-Metal Plus Hole Saw 4-1/8" (105mm) Boring Bits The laser-cut stabilizer vents areThe CMT 551 105X is a 4 1 8" (105mm) 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 4 1 8" (105mm) Blade Material Bi Metal (BIM) 8% Cobalt Tooth Pitch Variable 4 6 TPI (alternate and side set) System XTREME FAST Push&Lock Arbor