The cleaner can be sharpened into different shapes you need to clean the narrow edges and corners other cleaning tools can not reach

Hole saws are shipped without arbors and pilot drills

5/16X2-1/2'' GR8 CAP SCREWS NC [100/BOX]

6" BLACK TEE

00 IN OUTLET

7/8 S&D 1/2 RS DRILL The cleaner can be sharpened7 8 S&D 1 2 RS DRILL Silver & Deming style drill bits, 118 point. Made from M35 steel with 5% cobalt, Centurys Cobalt drill bits are designed to cut through extremely hard metals, including stainless steel. Polished finish for fast chip removal, keeping the bit cool and reducing wear. Cobalt steel will remain sharper while drilling large diameter holes in ferrous and non ferrous steels and other materials where large diameter holes are required.