Tap and die sets include a gauge that calculates threads per inch. Select the corresponding die that matches with the reading on the thread per inch gauge, and set the die in the handle that comes with the set.
The IROC-Z model of the Chevrolet Camaro first made its public appearance in 1985 as an add on option to the 1985 Camaro Z28 model. But its origin began long before that. IROC stands for International Race of Champions which is an automobile racing series similar to what NASCAR is.
With GM and Chevroletâs sponsorship of IROC ending with the 1989 season, a new era and racing platform was introduced for the 1990 campaign. Now stepping into to the batterâs box, Dodge provided itâs Daytona sport coupe as IROCâs chosen steed.