These service sets from PFERD allow the most common parts to be replaced in case of loss or damage. PFERD offers a replacement parts set for hole saw arbors and a service set for the ALUMASTER High Speed Disc. For swapping individual cutting inserts on the ALUMASTER High Speed Disc. This set contains two cutting inserts, two screws, and a TORX wrench. These cutting inserts come with a HICOAT® coating.