1) 19pcs drill set 2) HSS and carbon steel 3) YG8C cutting point tip 4) Drilling for concrere, bricks, stones and metal 19pcs set HSS twsit drill and masonry drill setPacked in Blow foan case. Size and specifiations:Titanium-coated and TCT masonry drill bit set. Incl: HSS Titanium 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5 and 7mm. TCT masonry 4, 5, 6, 7, 8 and 9mm. In soft-grip hinged ...