VEVOR Outdoor Handrail 74.8 kg Load Handrail Outdoor Stairs Aluminum Stair Handrail 91.4x88.9 cm Outdoor Stair Railing Transitional Range from 0 to 50° Staircase Handrail Fits 2-3 Steps with Screw Kit

Could this be installed outdoors on a tiled doorstep with 2 steps

Hello, Can you please advise the drill size required to fit the expansion bolts supplied with the Vevor handrail 3ft aluminum 2-3 steps. Model number LZHG - 3ft Thank you Dave Pedler