This Knipex Circlip Plier Set contains four circlip pliers - two internal and two external - to ensure you have the right set of pliers for any application. Each plier is forged from durable chrome vanadium steel and oil-hardened for maximum resilience. They feature non-slip grips and solid tips, making them ideal for regular industrial use. The set includes: 1 x 44 11 J1 - Circlip Pliers for internal circlips in bore holes (12-25 mm) 1 x 44 11 J2 - Circlip Pliers for internal circlips in bore holes (19-60 mm) 1 x 44 11 A1 - Circlip Pliers for external circlips on shafts (10-25 mm) 1 x 44 11 A2 - Circlip Pliers for external circlips on shafts (19-60 mm) These pliers are suitable for automotive, agriculture, and engineering applications and meet DIN 5256 C standards.