With the service sets from PFERD, the most common parts can be replaced in case of loss or damage. PFERD offers both a repair set for hole saw arbors and service sets for the ALUMASTER High Speed Disc and the High Speed Torus Cutter. For replacing individual cutting inserts on the High Speed Torus Cutter HSC-T 20. The set contains one cutting insert, one screw and a TORX wrench TX 15.