Check the listing for details. Fowler 74-004-500-0 X-Tread Tire Tread Gage And Poly-Cal Electronic Caliper Kit. Condition: New. Listed at 39.50 USD. Normal 0 false false false EN-US JA X-NONE Fowler 74-004-500-0 X-Tread Tire Tread Gage And Poly-Cal (PLASTIC) Electronic Caliper Kit Caliper Range: 0-6" / 25mmTire Tread Gage Range: 1"/25mmResolution: .0005"/.01mm (Fractions by 1/64th increments)Fowler's new X-Tread and Poly-Cal Kit combines 2 great tools complete in a shop hardened case. Poly-Cal Electronic Caliper (poly = plastic) also features 4-way measuring and has an accuracy: +/- .008". The X-Tread Tire Tread Gage for tire tread thickness measurement has a 2.1" base and .95" diameter rod. Polycarbonate frameAbsolute/Incremental MeasurementTire Tread Gage: spring-loaded and hold measurement button for ease-of-useWith fitted plastic case OVERSTOCK ITEM - REDUCED PRICE - WHILE SUPPLIES LAST IDEAL PRECISION INSTRUMENT SERVICE, INC.YOUR SINGLE SOURCE FOR PRECISION INSTRUMENTS, GAGING AND REPAIR.