Can I write off plumbing tools for a contractor?

Plumbing tools can be deducted as a business expense if they are ordinary and necessary for the contractor's trade or business. These tools must be used directly in the contractor's work, and the cost must be reasonable. For example, if a plumber purchases a new wrench set specifically for use on job sites, this expense is deductible. However, personal use of the tools would not be deductible.