Whiteside 9540-38N Brass Template Guide Bushing 9/32"ID, 3/8"OD features machined guide bushings that allow precise centering of the bit inside jigs and templates, ensuring accuracy for clean and professional results. This brass template guide bushing has a 9/32" inside diameter and a 3/8" outside diameter. It is supplied with both a bushing and a line-up pin for easy and accurate router setup. Designed for use in a base plate with a 1-3/8" diameter hole and a 1-3/16" counterbore, it ensures proper fit and alignment. Model Number: 9540-38N