Heavy Duty Mining & Construction Equipment. Don Leslie Supply Inc. provides equipment and supplies for the mining and construction industries for clients in the Duluth, MN area. As a family-owned and operated business for over 25 years, Don Leslie Supply is your resource for heavy duty mining and construction equipment. Don Leslie Supply offers compressors, hydraulic rock drills, construction tools, drilling consumables, handheld construction products, hoses and rubber products, onsite delivery to all locations, sales, service and rentals. We also offer emergency services to go along with estimates and same day service. Call Don Leslie Supply, Inc. today to find out how we can be of help to you!