While Corona tools are generally considered among the best garden care investments on the market, even the best tools begin to eventually suffer from the wear and tear of regular use. Thankfully, with a little bit of simple maintenance, you can get your tools back in top working form with only a little bit of time and effort on your part.
Put on your protective gear. Gloves and protective eye-wear are a must for this project. You will be dealing with very sharp tools, so you will want thick, cut-resistant gloves. Safety glasses or goggles will keep particles from ending up in your eyes.
Brush down your Corona tools thoroughly. You should be brushing down your tools with a good stiff-bristled brush after each use, but for this cleaning, it is particularly important to get all of the larger bits of debris off of your Corona tools before continuing with the cleaning.
Mix 2 tbsp. of antibacterial detergent with a gallon of water. Almost any normal liquid dish soap will work fine for this so long as it is an antibacterial formula.
Wash down all the surfaces of your Corona pruning tools with a rag and the soap and water mixture. Make sure to get all of the edges, handles and especially the blades since those are the areas that come into the most direct contact with the vegetation and have the highest risk of carrying any harmful bacteria.
Rinse the Corona pruning tools thoroughly with water to remove any lingering residue from the detergent wash.
Dry the Corona tools with a clean, dry towel. Try to get as much water off of the tools as possible in order to prevent any chance of rusting, corrosion or binding.
Spray the metal components of the Corona pruning tools with a spray oil such as WD-40 or something similar. This will help to preserve and protect your tools and keep them working at their finest.