Features: 1) Standard: 3/4"(19mm), 7/8"(22mm), 1-1/8"(29mm), 1-3/8"(35mm), 1-1/2"(38mm), 1-3/4"(44mm), 2"(51mm), 2-1/4"(57mm), 2-1/2"(64mm) 2) One arbor 1/2"(13mm), one arbor 5/8"(16mm), one split drill Outer packing: 10sets/ctn Carton dimensions: 51 x 37 x 40cm N.W.: 23kg G.W.: 25kg