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 gages #4349-#4354 are available separately * 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