An apparatus comprising: a multi-finger caliper module for use in a tubular extending into a subterranean formation, wherein the MFC module comprises: a tool body comprising a plurality of slots each comprising a receptacle; a plurality of measuring fingers, wherein each measuring finger is independently rotatable within a corresponding one of the slots via a corresponding pivot formed by complementary linking portions (216, 242) of the measuring finger and the receptacle of the corresponding slot, and wherein the linking portions (216, 242) of the receptacle are situated on opposing side walls of the receptacle; and a plurality of linear displacement sensors each operable for sensing an orientation of a corresponding one of the measuring fingers relative to the tool body characterized in that for each measuring finger and corresponding slot: a first one of the linking portions of the measuring finger and the receptacle is a protruding portion; a second one of the linking portions of the measuring finger and the receptacle is a recessed portion, complementary to the first one of the linking portion and an elasticity of at least one of the protruding and recessed portions permits disengagement of the protruding and recessed portions via application of a force sufficient to overcome the elasticity. a multi-finger caliper module for use in a tubular extending into a subterranean formation, wherein the MFC module comprises: a tool body comprising a plurality of slots each comprising a receptacle; a plurality of measuring fingers, wherein each measuring finger is independently rotatable within a corresponding one of the slots via a corresponding pivot formed by complementary linking portions (216, 242) of the measuring finger and the receptacle of the corresponding slot, and wherein the linking portions (216, 242) of the receptacle are situated on opposing side walls of the receptacle; and a tool body comprising a plurality of slots each comprising a receptacle; a plurality of measuring fingers, wherein each measuring finger is independently rotatable within a corresponding one of the slots via a corresponding pivot formed by complementary linking portions (216, 242) of the measuring finger and the receptacle of the corresponding slot, and wherein the linking portions (216, 242) of the receptacle are situated on opposing side walls of the receptacle; and a plurality of linear displacement sensors each operable for sensing an orientation of a corresponding one of the measuring fingers relative to the tool body characterized in that for each measuring finger and corresponding slot: a first one of the linking portions of the measuring finger and the receptacle is a protruding portion; a second one of the linking portions of the measuring finger and the receptacle is a recessed portion, complementary to the first one of the linking portion and an elasticity of at least one of the protruding and recessed portions permits disengagement of the protruding and recessed portions via application of a force sufficient to overcome the elasticity. a first one of the linking portions of the measuring finger and the receptacle is a protruding portion; a second one of the linking portions of the measuring finger and the receptacle is a recessed portion, complementary to the first one of the linking portion and an elasticity of at least one of the protruding and recessed portions permits disengagement of the protruding and recessed portions via application of a force sufficient to overcome the elasticity.