How to Use a Slot Cutting Router Bit

Routers are versatile tools useful in cutting edges, making trims, and solving a wide range of woodwork problems. Learn how to straighten boards, cutting boards; flatten bows, and so much more.

The slot-cutting router bit work in the same way as saws creating small grooves or slots for joinery work. The router bit brings in advantages such as perfectly smooth and flat cuts. The router bit also makes it easier for you to cut along the wide wooden stock edges. The bits are available in different sizes that can adjust to the depth that mostly correspond with the three sizes slot cutters use. You can also purchase slot cutters that come in pairs of wing cutters that use adjustment knobs to set the size requirement. Slot-cutting router bit’s table can turn into a biscuit joiner, giving you an extra tool.

A router bit enables you to learn some advanced woodwork techniques that you previously thought needed special tools. Go beyond the ordinary and make use of your router bit to make better joints and excellent cuts. If you do not own one, check it: to learn top router bit for cutting letters.

Learn the router bit techniques

Making biscuit joints

  • You do not need to have a biscuit-joining table if you already have the cutting router bit table cut slots. Use the slot cutter by making a continuous cut on the board with a thickness of about ¾ inches. A router with a 5/32 is a perfect slot for fitting the biscuit joint.
  • Mark the expected position of the biscuit on the two boards. Thick boards do not require markings as long as you make continuous slots on both boards.
  • Then cut ½ inches longer than the biscuit.
  • Add glue on the piece, including the joint, and then clamp it for a stronger joint.
  • The cutting router bit is commonly available in three standard sizes of 0, 10, and 20.

Note: A router bit can only make cuts along the edges of a board and not across it. A router bit can only cut on square faced-boards and not the bevel ones.  

Making Home-made Plates

Become more versatile by making plates you can use at home using the cutting router bit. You can make a plate with a bigger capacity. You can use the original plate as a template for positioning the center and the screw hole. If your choice of material is acrylic, sand the sharp edges to avoid hand injuries.

Planning Straight Edges

Use a guide to get a pattern right using the pattern bit to run along the edge to get a smooth pattern. When looking to plane a surface to a level, sandpaper cannot make it use the slot-cutting bit. Get hold of a router with a pattern bit and do the planning job with a single tool.

Using the router bit, inspect the edges to avoid transferring unevenness to other areas of the workpiece.

If you were shaving off more than 1/8 inches, make sure to choose a pattern that does not exceed ½ inch in depth. A larger diameter gives you an allowance of not messing up your pattern.

Flattening Bowed Surfaces

Regardless of the workpiece or a piece of misaligned material, use a router with a straight bit to plane the surface.

  • Mount the router bit on an oversize base and screw it to the base plate
  • Make a pair of 8-inch reels that should be longer than the workpiece while the height depends on the router bit length.
  • Plane the raised side first, sliding the reels back and forth the rails
  • When the raised side becomes flat, turn the workpiece over to flatten the other side.
  • Router bits leave a rough surface so that you will pass it through sanding.

Final word

Make use of the slot cutting router bit, and you will find it easy when constructing furniture. Please get rid of the sharp corners in furniture and make the painting exercise easy as it eliminates the structure’s weakest links at the edges.

The slot cutting rounder bit is a precision tool that has added several techniques of slot cutting. It works faster and efficiently compared to the cutters we already have in the market.