Replacing the pilot drill on your arbor, the KA19 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 diame...
Allows diameter to be enlarged further by using a smaller hole saw as the pilot drill
Quck and easy to fit
Replaces the pilot drill in any A1, A2 or A10 type arbor
Compatible holesaws are FCH, DCH, TCT multi purpose, CT & Diamond