CMT 551-102X Bi-Metal Plus Hole Saw 4" (102mm) Standoff Column Bases more durable layer of corrosion

more durable layer of corrosion protection compared to standard coatings

This column base is ideal for applications that demand high structural values and rugged

Common Shank Design Shank diameter equals drill diameter -- fits directly into CMT 364/365 adapters and bushings for use on boring machine spindles

56/16 is made from 10-gauge steel and features a G90 zinc galvanized finish

CMT 551-102X Bi-Metal Plus Hole Saw 4" (102mm) Standoff Column Bases more durable layer of corrosionThe CMT 551 102X is a 4" (102mm) 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" (102mm) Blade Material Bi Metal (BIM) 8% Cobalt Tooth Pitch Variable 4 6 TPI (alternate and side set) System XTREME FAST Push&Lock Arbor