The GR 0.1218 6-40 CL3A GO gage is a precision tool designed for checking the fit of 6-40 threaded holes. With a diameter of 0.1218 inches, this gage ensures compliance with industry standards for quality control in manufacturing. Made from high-quality materials, it offers durability and accuracy, making it essential for any machining operation. The CL3A classification indicates its suitability for high-precision applications, ensuring that it meets the stringent requirements of various industries. Its compact design allows for easy use and storage, making it a valuable addition to any toolset.