CMT 551-102X Bi-Metal Plus Hole Saw 4" (102mm) Chucks & Collets and tough materials are part

and tough materials are part of the job

this blade covers the most common framing and rough-carpentry materials in a single SKU

Best finish on the lower face of the cut

The CMT 855

Axial Shear Face Grind (ASFG) is Diablo's tooth geometry technology that angles the face of each carbide tooth to cleanly shear through wood fibers rather than pushing or tearing through them

CMT 551-102X Bi-Metal Plus Hole Saw 4" (102mm) Chucks & Collets and tough materials are partThe 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