Features: 1. Application-- Used to measure installed valve spring height conveniently and accurately for most V8s. With 1.600'' - 2.100'' range. 2. Easy to use-- 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. 3. Precise design-- This simulated seat pressure allows ultra-precise readings. It can measure 1.600 in-2.200 in installed height. The tool is then read like a micrometer and is accurate to 0.001". 4. High quality-- Made of high-quality aluminum alloy with black finish, great strength, and lightweight Descriptions: The package includes: .
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