A delivery system for treating spine disorders comprising: a first instrument comprising an outer sleeve that extends along a longitudinal axis (L1, L3) defining a passageway , and an inner sleeve coaxial with the axis (L1, L3) having a first end disposed in the passageway and a second end including a first mating element , the inner sleeve defining a channel coaxial with the axis (L1) and extends the entire length of the inner sleeve ; and a second instrument comprising a hollow shaft disposed in the channel and extends along a longitudinal axis (L2) and a handle coupled to the shaft , the handle comprising a body that is coaxial with the shaft and the axis (L2), and a second mating element extending from the body , the second mating element being configured to engage the first mating element to secure the second instrument to the first instrument such that the axis (L2) is coaxial with the axis (L1, L3), wherein the second mating element includes a first wing that extends from a first side of the body in a cantilevered configuration, and a second wing that extends from an opposite second side of the body in a cantilevered configuration; wherein the first wing comprises a first extension that extends parallel to the longitudinal axis (L2) from the first side , a first gripping portion that extends transverse to the longitudinal axis (L2) from the first extension and a first tab that extends perpendicular to the longitudinal axis (L2) from the first extension ; and wherein the second wing comprises a second extension that extends parallel to the longitudinal axis (L2) from the second side , a second gripping portion that extends transverse to the longitudinal axis (L2) from the second extension and a second tab that extends perpendicular to the longitudinal axis (L2) from the second extension . a first instrument comprising an outer sleeve that extends along a longitudinal axis (L1, L3) defining a passageway , and an inner sleeve coaxial with the axis (L1, L3) having a first end disposed in the passageway and a second end including a first mating element , the inner sleeve defining a channel coaxial with the axis (L1) and extends the entire length of the inner sleeve ; and a second instrument comprising a hollow shaft disposed in the channel and extends along a longitudinal axis (L2) and a handle coupled to the shaft , the handle comprising a body that is coaxial with the shaft and the axis (L2), and a second mating element extending from the body , the second mating element being configured to engage the first mating element to secure the second instrument to the first instrument such that the axis (L2) is coaxial with the axis (L1, L3), wherein the second mating element includes a first wing that extends from a first side of the body in a cantilevered configuration, and a second wing that extends from an opposite second side of the body in a cantilevered configuration; wherein the first wing comprises a first extension that extends parallel to the longitudinal axis (L2) from the first side , a first gripping portion that extends transverse to the longitudinal axis (L2) from the first extension and a first tab that extends perpendicular to the longitudinal axis (L2) from the first extension ; and wherein the second wing comprises a second extension that extends parallel to the longitudinal axis (L2) from the second side , a second gripping portion that extends transverse to the longitudinal axis (L2) from the second extension and a second tab that extends perpendicular to the longitudinal axis (L2) from the second extension . <EOS>