Whiteside B3 BLK Ball Bearing 1/2"OD, 3/16"ID

Whiteside B3 BLK Ball Bearing 1/2"OD, 3/16"ID works wonderfully with a variety of materials, achieving great results at various speeds. Highlights: Our most common B3 Ball Bearing in a 100 piece pack for your woodworking needs. Ball Bearings are used on a router bit to follow a template or the flat edge of your workpiece. The inside of the bearing has several metal balls that allow the bearing to freely roll without restraint.