10inch Adjustable Valve Compressor Tool

Constructed from high-quality metal that eliminates tool flex; Strong and adjustable cam-action works perfectly in line with the valve and can get into even the narrowest valve chambers. Suitable for small to medium engines with overhead valves; Works with a cylinder head on your workbench or any OVH head removed from the block; 3-inch to 6.5-inch (7.5cm to 16.5cm) capacity with a 6-inch (15.2cm) throat clearance.