The Omega Technologies MAPSD-25 Pintail Shaver Cutoff Kit Replacement Cutting Discs 25PK is a pack of 25 cutting discs specifically designed for shaving corebolt breakoffs on Composi-Lok & Visu-Lok fasteners. These discs are ideal for use with the Rivet Stem Shaver tool, which is a part of the PSK1 Pintail Shaver Cutoff Kit for Composi-Lok & Visu-Lok Fasteners. This pack provides a handy refill for users who frequently work with these types of fasteners, ensuring continuous and efficient operation in fastener maintenance and repair tasks.