This lightweight extension easily attaches to the Dayco Factfinder Gauge III for accurate measurement of larger sized v-belts and multi-ribbed belts and quick identification of corresponding Dayco replacement sizes. The Dayco Factfinder Gauge III Extension permits v-belt measurement up to 130 and multi-ribbed belt measurements up to 145. Product Features:Allows for quick identification of corresponding Dayco replacement sizesPermits multi-ribbed belt measurements up to 145.Permits v-belt measurement up to 130
