Here is the affordable, portable way to test springs. The hex-design body is very versatile: use it in a vise or an arbor press. These hydraulic models are supplied with a rubber gauge protector. Sold individually.
Product Details:

• Engine Valve Spring Tester
• Mini Style
• For Vise or Arbor Use
• 0-300LB Range
• 5LB Increments
• This Model Comes Complete With A Rubber Gauge Protector
• This Tool Is An Affordable and Portable Way To Test Springs
• Sold As Each