This 1/2" (12.7mm) wide self-adhesive measuring tape fits snugly into the indentation on the top side of Kreg's Top Trak and Heavy Duty Trak. This metallic tape is highly scuff resistant and can be trimmed to length with scissors. Be sure to choose the correct tape orientation (left to right where used for reading to the right of a blade or right to left where used reading to the left of a blade).