VEVOR Fire Pit Ring 42-Inch Outer/36-Inch Inner Diameter, Fire Pit Insert 3.0mm Thick Heavy Duty Solid Steel, Fire Pit Liner DIY Campfire Ring Above or In-Ground for Outdoor

Sure, you need to drill a hole according to your own needs, and the size of the hole depends on the diameter of the chimney.

Yes, holes can be put in this to create a smokeless firepit.

Yes, it does.