Bi-Metal Hole Saws KITS 1-3/4"(44mm), 2-1/4"(57mm) Arbor 98003, 98010, Adapter 98012 2"(51mm), 2-1/2"(64mm) Arbor 98003, 98010, Adapter 98012 1-3/4"(44mm), 2-1/4"(57mm) Arbor 98003, 98010, Adapter 98012 2"(51mm), 2-1/2"(64mm) Arbor 98003, 98010, Adapter 98012 1-3/4"(44mm), 2"(51mm), 2-1/4"(57mm), 2-1/2"(64mm) Arbor 98003, 98010, Adapter 98012, Drill 98015 1-1/8"(29mm), 1-1/4"(32mm),1-3/8"(35mm), ...