• Checks cylinders, recesses, slots.
• Long handles for deep measurements (up to 5-1/2” on largest)
• Both contacts release or lock by turning knob at end of handle
• Measurement is taken with micrometer (not included)
• Includes 6 pieces: 5/16”-1/2”, 1/2”-3/4”, 3/4”-1-1/4”, 1-1/4”-2-1/8, 2-1/2”-3-1/2”, 3-1/2”-6”
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