Gauge Set, Manufacturer suggested retail price. $163.34 Features and Benefits: Self-centering, heavy duty checks slots, grooves, recesses, cylinders. Handles are up to 5-1/2" long. Satin chrome finish. Both contacts release or lock by turning knob at end of handle. Measurement is read with micrometer. Individual gauges #4349-#4354 are available separately. 6-Piece Set No. 6554 4349 5/16-1/2" 4350 1/2-3/4" 4351 3/4-1-1/4" 4353 2-1/8-3-1/2" 4352 1-1/4-2-1/8" 4354 3-1/2-6" Manufacturer: Central Tools WARRANTY: Repair only up to 90 days