Easily construct your own roller bed or outfeed table using these WoodRiver® Roller Ball Inserts. Simply drill ¾” holes 4″ on center and press into any plywood or MDF surface.

Features:

• Installs on 4″ centers
• Fits in a ¾” bored hole
• Polyethylene roller ball and outer body
• Roller ball rides on (7) steel ball bearings

• (10) ¾” Roller Ball Inserts