The Lang Tools Quick Switch Retaining Ring Pliers are designed to be easy to use on both internal and external rings. This product line is designed to stay together and not be separated when switching. The pliers feature cushion gripped handles for added comfort, and the steel is heat treated for durability. The pliers are available individually in 0, 45, and 90 degree angles and tip diameters of .038", .047", and .070". They are also available in 6-pc (No. 3597) and 12-pc (No. 3595) kits. These pliers are patent pending and made in the USA.