General description Top and shank mounted road bit bearings designed for use in repairing road bits. This set allows you to create grooves of various depths or widths in wood, making it a versatile tool for DIY and home improvement projects. Technical specifications Inner diameter: 4.76 mm Outer diameter: 12.7 mm Material: Steel Color: Black + Silver Package Contents: 25 Bearings, 25 Screws, 5 Wrenches Measurement allowed error: +/- 1-3 cm Usage These bearings are easy to use and suitable for milling heads and shank applications. Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.