9pcs Bi-Metal Hole Saw Set

6pcs hole saw: 3/4"(19mm), 7/8"(22mm), 1-1/8"(29mm), 1-1/2"(38mm), 1-3/4"(44mm), 2-1/4"(57mm) • 2pcs arbors: 3/8"(9.5mm) hex shank arbor with hss polit drill for 1/2"-1-3/16"(14-30mm) hole saw,7/16"(11mm) hex shank arbor with hss polit drill for 1-1/4"-8-17/64"(32-210mm) hole saw