Adjustable locking pliers, with which the series of existing, conventional locking pliers is completed. Patented pliers with interchangeable tips (straight, 15 and 90), which can easily be adapted to use for internal or external circlips. 5 pairs of strikers are supplied with the -160 & -200 and 6 pairs with the -250 version. Suitable for internal locking rings in dimensions of 8-100 mm diameter and for external circlips from 3 to 100 mm. This underlines the significance of, for example, the 2928-160 pliers that covers a working area that previously required 10 different classic pliers. Equipped with an adjustable stop (the 2928-250 with an automatic stop) that facilitates work and prevents the retaining rings from being damaged by excessive expansion or contraction.