IVY Classic 28096 6" Bi-Metal Variable Pitch Hole Saw, 1/Box

Cuts stainless and mild steel, non-ferrous metal, plastic and wood, Cobalt Advantedge (Registered Trademark) Bi-Metal construction with M-3 cutting edge retains hardness Variable pitch, positive rake tooth design 4-6 TPI minimizes tooth wear Thick backing plate prevents thread stripping and increases torque 1-5/8" cutting depth cuts through 2 x 4s in one pass. Deep gullet fleam ground teeth cut wood 40% faster