Tools bought for business use can be expensed. If the tool is also used for personal use, only the portion of use that relates to your business can be expensed.
Any costs incurred in purchasing tools will be deductible if they are used in your business. If you also use these tools for personal use, only the portion of use that relates to your business can be expensed (e.g. a new oven installed for baking cakes, that you also use it cook dinner).
Some examples of tools may include:
Any purchase that you expense in full should be used solely for your business. If you are going to use an item for personal reasons too, you should expense the share of its use that relates to your business.