EFFICIENT VALVE REMOVAL/INSTALL - Everything you need to safely remove or install valve springs, including the wide C-clamp, extension screws, and pushers with 5 collet sizes for a precise fit on almost any automotive or small engine valve spring and cylinder head. DURABLE STEEL CONSTRUCTION - With forged steel construction for superior strength and hardness, this C-Clamp will not bend or twist under the stress of compressing valve springs. The smooth surface is finished with oxide to resist