10-TCT professional hole opener, easy drilling of metal and wood boards, smooth edges and no burrs

10-TCT .Sizes are 16mm(5/8"), 18mm(11/16"), 20mm(3/4"), 22mm(7/8"), 25mm(1"), 30mm(1-1/8"), 35mm(1-3/8"), 45mm(1-3/4"), 50mm(2"), 53mm(2-1/8"), 10 pcs pilot bits and 1 pc hex wrench