Woofs Brothers Garage Door Torsion Spring Wire Measuring Tool for Springs

Steel ruler – Marked with all spring wire sizes on one side.
Inch markings on the other side.
1” Wide
One end is pressed into the spring – then count 20 coils, wire size is then indicated.
Takes the guess work out of measuring springs.
This is a garage door professionals way of measuring garage door springs.
Accurate measurements of garage door springs are essential, you must be exact, this tool enables your to be exact every time you measure a spring.