Starrett A19 Oops Hole Saw Arbor

Replacing the pilot drill on your arbor, the A19 allows diameters to be enlarged by attaching a saw of the same size to that of the existing hole. This saw then acts as the pilot for the larger diameter saw that is attached to the arbor.Compatible hole saws: FCH, DCH, TCT Multi Purpose, CT & DiamondCompatible Threads: 1/2x20 & 5/8x18Country of Origin: CN Specifications: Min. Hole Enlargement metric: 4,7mmmm Min. Hole Enlargement imperial: 3/16"

Price: 11.95 from Tooled Up