CV Boot Clamp Pliers Clamp Pliers Specifications. Easy to Use - Our CV boot clamp tool is very easy to use with its small size and high torque. Quality Clamp Pliers - CV axle boot tool is forged from premium steel and heat-treated for superior durability, the rigid design makes it easy to secure hoses, and the handles are ergonomically designed with non-slip material to provide you with a superior tactile sensation and more stable operation during use.