... .01" & 0.012" available. 4.High grade medical NITI made Specificationsniti open coil spring Round Specification: 0.008, 0.010, 0.012, 0 ... : Ni-Ti Alloy 2pcs/packNITI Close and open Spring Round Specification: NITI Close Spring 0.010 & 0.012inch Material: Ni-Ti ... Alloy niti Open coil springs18 cm/pcs2 pcs/setniti closed coil springs6,9,11mm/pcs10 pcs/setniti open ...