Features: * Application: Model for 1.600 Inch to 2.100 Inch Valve Springs. Fit most V8 engines. * Function: Measure installed valve spring height conveniently and accurately. Tool is read like a micrometer and is accurate to .001”. * Easy To Use: You install our 4929 Height Mic just like you would a valve spring, then expand the tool until it has seated the valve, locks and retainer. This simulated seat pressure allows ultra precise readings. * High Quality: Made of high quality carbon steel with black finish, great strengh and light weight , anti-corrosion, durable to use and no deformation. .
