CMT 551-102X Bi-Metal Plus Hole Saw 4" (102mm) Standoff Column Bases The HD5B HDB holdown is

The HD5B HDB holdown is specifically suited for back-to-back applications where eccentricity is a concern

Diameter 5-1/4" (133mm)

Tooth Grind Type Alternate Top Bevel (ATB) 10 degrees

more durable layer of corrosion protection compared to standard coatings

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 The HD5B HDB holdown isThe 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