Ear clamps for easy and reliable attachment of 1-ear and 2-ear clamps (Oetiker system or similar). No damage to the crimp points on the ear clamps. The slim head allows for good accessibility in tight spaces. Versatile use for clamps on axle boots, radiator and fuel lines, pneumatic systems, and compressors. Capacity for half-moon, capacity in mm², square connection, capacity for square, capacity for stepped square, capacity for triangular, clamping range for hexagonal, clamping range for round, clamping range for square, span.