Tool and method for one-handed manipulation and placement of conduit-joining sleeve

A tool, comprising:

• an open-ended cylinder having a first half-cylinder and a second half-cylinder, each of said first half-cylinder and said second half-cylinder having a first circumferential end and a second circumferential end, wherein said first circumferential end of said first half-cylinder is hingedly coupled to said first circumferential end of said second half-cylinder;
• a retainer attached to exterior portions of said open-ended cylinder, said retainer having a spring-bias for automatically coupling said first half-cylinder to said second half-cylinder when said second circumferential end of said first half-cylinder is in contact with said second circumferential end of said second half-cylinder;
• a first axial end of said open-ended cylinder having a first internal diameter D1;
• a second axial end of said open-ended cylinder having an annular ledge at an internal region of said open-ended cylinder, wherein said open-ended cylinder has a second internal diameter D2 at said annular ledge wherein D1>D2, and wherein a constant internal diameter of said open-ended cylinder between said first axial end and said annular ledge is equal to said first internal diameter D1;
• said open-ended cylinder having an internal length L between said first axial end and said annular ledge;
• and
• a set of apertures extending through radial walls of said open-ended cylinder and distributed circumferentially about said open-ended cylinder, each aperture from said set of apertures including a portion located a distance Y from said annular ledge that is less than said internal length L.