With the router unplugged and resting on a steady workbench, insert a bit into the collet. Some routers have a protective guard to shield the user from flying debris, but you should always wear safety goggles and a dust mask.
You may need a fence (guide) to direct the bit for an accurate straight line. Attach the fence to the base plate then butt it against the wood’s straight edge. Make sure it remains in contact with the edge as the router moves across the wood. You will be unable to use the fence if the straight cut is not near the wood’s edge. Instead, use a straight edge as a guide. Clamp the straight edge to the wood and pass the router along it, ensuring that it stays in contact with the straight edge. To cut out an area wider than the bit can make in one pass, use two straight edges.
Check the owner's manual for information on servicing and maintenance. Make sure that you oil the machine as recommended. Most routers are sold in sturdy boxes which are ideal for long-term storage. Use a specially designed case to protect cutting bits when they are not in use.
Use this bit to cut a groove with a sharp apex. To create a channel through a section of wood, a groove bit is needed. This type of bit is useful for creating joints. For example, a straight bit can create a recess for jointing to another piece of wood.
Edge bits often have a ball bearing in their tips that acts as a guide along the edge of the wood. This eliminates the need for a fence or other guide. This bit produces a uniform rounded edge with a slight rabbet — a finish commonly found in kitchen countertops.