Bi-metal hole saw 14 mm

Bi-metal Hole Saw 14 mm, height 56 mm, drilling depth: 38 mm, application: metal, steel/Inox, cast iron, brass, aluminum, wood, thread: 1/2” x 20 UNF, made of HSS high-speed steel, for use with 56T753 Adapter with pilot drill for bi-metal hole saws 14-30 mm, Hex, diameter: 14 mm, max rotational speed: steel: 580 rpm, stainless steel: 300 rpm, aluminum: 900 rpm, wood: 800 rpm, cast iron: 400 rpm, brass: 790 rpm