A selection Chainsaws Accessories to keep your saw running efficiently and safely, many of these are consumable items that you will have to replenish when required, for example chain oil and petrol if you have a petrol chain saw. You will also need at least one spare chain as teeth do get broken off by hidden nails that might be embeded in the wood you are cutting. Chains also become blunt during use, so you will need files to sharpen your chain as work progresses.
It's all always good practice to keep a supply of chainsaw accessories handy whenever you are using your saw, especially chain lubricating oil and sharpening files and a spare chain. You don't want to be working away from base and your saw chain becomes blunt and you have no files with you, it's very frustrating when that happens.