The BRITOOL Ring Spanner is a high-quality hand tool designed for use in garages and on vehicles. With a 3/16BS and 1/8w size on one end, and 1/4BS and 3/16w size on the other, this versatile spanner is perfect for a variety of applications. Manufactured by Britool, known for their reliability and durability, this ring spanner is a must-have for any vehicle maintenance or repair project.