The RUBBER GROMMET features a 1-inch inner diameter, a 1-3/8-inch drill size, and a 1/8-inch groove width, making it ideal for securing and protecting wiring in various applications. Constructed from high-quality rubber, this grommet effectively prevents abrasion and damage caused by sharp edges of drilled holes. It is suitable for use in automotive, industrial, and electrical installations where reliable wire protection is essential. Ensure longevity and safety in your projects with this dependable grommet solution.