Aldon 4024-03 Stringline

Now: $309.50

Product Description

Measure track curvature or visually judge the straightness of straight rail
Steel paddles lock to rail head
The custom 12 in ruler measures the space between the rail head and the red-marked midpoint of a 62 ft. cord
Each inch of space between rail and string equal one degree of curvature
Accuracy of measurement is +/-4%
Other subsidiary measuring points can be color-dotted on the 62 foot cord
By color-dotting, two different overall distances can be provided in one length of cord, each with its own mid-point
The string reel has a lockable payout/retrieval latch to lock string at any desired point
Weighs 5 lb