TheSteck Manufacturing SPR Extraction and Insertion Tools, Nos. 21970 and 21960, allow technicians to repair, remove and install self-piercing rivets without the need of hydraulic tools. The SPR Extraction Tool is a high-grade, hardened steel frame with a 1/2"-20, Grade-8 hex bolt with a hardened tip to push out a SPR with a 3/4" or 19mm socket. The SPR Insertion Tool is a high-grade, hardened steel frame with a 1/2"-20 Grade-8 hex bolt with a magnetic end and a center recess to hold the replacement SPR. Users can insert the SPR with a 3/4" or 19mm socket on a 1/2" impact wrench.