A method for determining a depth of a cable embedded in a sidewall of a tire , the method comprising: inserting a cable depth gauge into a repair hole formed through a tire , the cable depth gauge comprising: an elongated body having a proximal end having an indicator point set to reference a surface of the tire , the elongated body having a width sized to determine eligibility if the repair hole being examined meets a minimum size for a repair process, and a first measuring region and a second measuring region located at the proximal end of the elongated body, each of the first measuring region and the second measuring region being arranged at a known distance from the indicator point , the first measuring region extending from the indicator point to the edge of the second measuring region , and the second measuring region extending beyond the length of the first measuring region ; positioning the indicator point of the cable depth gauge at a surface of the tire ; determining whether the cable falls within the first measuring region , the second measuring region or beyond the second measuring region ; and classifying the depth of the cable as shallow if the cable falls within the first measuring region , medium if the cable falls within the second measuring region or deep if the cable falls beyond the second measuring region . inserting a cable depth gauge into a repair hole formed through a tire , the cable depth gauge comprising: an elongated body having a proximal end having an indicator point set to reference a surface of the tire , the elongated body having a width sized to determine eligibility if the repair hole being examined meets a minimum size for a repair process, and a first measuring region and a second measuring region located at the proximal end of the elongated body, each of the first measuring region and the second measuring region being arranged at a known distance from the indicator point , the first measuring region extending from the indicator point to the edge of the second measuring region , and the second measuring region extending beyond the length of the first measuring region ; an elongated body having a proximal end having an indicator point set to reference a surface of the tire , the elongated body having a width sized to determine eligibility if the repair hole being examined meets a minimum size for a repair process, and a first measuring region and a second measuring region located at the proximal end of the elongated body, each of the first measuring region and the second measuring region being arranged at a known distance from the indicator point , the first measuring region extending from the indicator point to the edge of the second measuring region , and the second measuring region extending beyond the length of the first measuring region ; positioning the indicator point of the cable depth gauge at a surface of the tire ; determining whether the cable falls within the first measuring region , the second measuring region or beyond the second measuring region ; and classifying the depth of the cable as shallow if the cable falls within the first measuring region , medium if the cable falls within the second measuring region or deep if the cable falls beyond the second measuring region . <EOS>