Better and safer tools for contractors is the aim of Tough Trade Tools (formerly County Line Concepts). The RidgeLine and RidgeLine9 were introduced in 2019. They are oversized protractors for making precise cuts of large building materials such as metal and wood. Manufactured in the U.S., the RidgeLine 9 is mounted on a HDPE body and used to mark angles on 9” on-center metal panels, with extendable arms capable of “0” to 12/12 pitch, rotating left or right. The RidgeLine is used to mark angles from “0” to 12/12 pitch on any flat material, also rotating left or right.