SPI Internal Dial Caliper Gage, 30 – 55 mm

• Fast checking of internal dimensions.
• Ideal for comparative I.D. measurements.
• Easy to set with mikes or setting ring.
• Rotatable dial with bezel clamp.
• Graduation .001″. ? Revolution counter.
• Accuracy: .0015″
• Spring loaded arms and ceramic contact points for accurate measurements under constant pressure.
• Push-button to close arms.
• Dial reading .200″ per revolution (2x .100″), except 20-970-0 long arm model features .400″ per revolution, continuous reading.

30 to 55 mm, Inside Dial Caliper Gage

See all SPI Internal Dial Caliper Gages