Thank you for choosing US Diamond Tools. We are proud to carry A&M diamond and carbide rotary cutting tools. All A&M carving tools, diamond drill bits, and diamond files are made in the USA. A&M Instruments Inc 770-772-6404 770-772-6403 (Fax) amam@mindspring.com All shipments in the US will be shipped via UPS ground transportation unless you request another shipping method. All international shipments will be shipped via the post office unless another method is requested. If you need to return any item please e-mail us to request a Return Authorization number. This RA number ensures that you receive the proper credit. Always use proper eye protection and gloves when using any cutting or grinding tool.