Wolfcraft 3319000 Forstner Drill Bit Ø 8 mm Shank and Ø 28 x 90 mm Size - - Amazon.com
GBL 2" Heavy Duty Caster Wheels with 2 Brakes + Screws & Screwdriver- up to 440Lbs - Set of 4 No Floor Marks Silent Castor for Furniture - Rubbered Trolley Wheels - Black Casters : Industrial & Scientific - Amazon.com