Combination Drill & Counterbores in the Counterbores & Porting Tools category from GoVets are the perfect tool for completing or working on your project. These tools are used to drill and countersink holes in a single operation, allowing for a more efficient and accurate process. Combination Drill & Counterbores are available in a variety of sizes and styles, making them suitable for a wide range of applications. Shop today and get the right tool for the job.