FEATURES • Three-point model. • Carbide-tipped measuring faces. • Supplied with standard setting ring. • Ratchet stop for constant force. • Chrome-plated surface. • Graduation: 0.005mm or 0.0002" • Accuracy: 0.004mm or 0.00016" (for range up to 40mm/1.6"); 0.005mm or 0.0002” (for range over 40mm/1.6") • Extension rod (length: 150mm or 6" ) for deep holes. • Dimension: A=0.5mm/0.02” • Order No.8502-2**** with titanium-plated anvils. • With carry case.