RS Pro 26 Piece Combination Spanner Set RS Pro 26 Piece Combination Spanner set is a kit, suitable for professionals or enthusiasts. Manufactured with quality in mind. Fully hardened and tempered, polish finished chrome-vanadium steel. High-quality build allows safe operation, even at high torques. The Spanner Set is supplied in handy storage case made from durable hard plastic. Features & Benefits • Manufactured from high-quality, chrome-vanadium steel • Hardened and tempered • General purpose, twin ended spanner set •Supplied in handy storage case