The KNIPEX 4921A31 precision retaining ring pliers are designed for fitting external retaining rings with a nominal diameter of 19-60 mm. These pliers feature straight tips made from highly compressed spring steel, ensuring high durability and resistance to wear. The tips are non-slip, providing a secure grip on the retaining rings. The pliers are equipped with a bolted joint for precise, backlash-free operation and have a large contact area on the tips to prevent distortion of the rings. The handles are plastic-coated for comfortable and secure handling. Manufactured from chrome vanadium electric steel, oil-hardened, these pliers offer reliable performance for professional use.