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How To Mortise A Door Hinge With A Dremel

Mortise door hinge 5” x 3” x 2.5mmEN/CE/Certifire tested,Stainless Steel
Mortise door hinge 5” x 3” x 2.5mmEN/CE/Certifire tested,Stainless Steel from www.unityhardware.net

How to Mortise a Door Hinge with a Dremel


If you’re planning to install new door hinges or replace the existing ones, mortising the door and the door frame is essential. Mortising creates a recess for the hinges, allowing the door to swing smoothly. While there are various tools you can use for this task, a Dremel tool proves to be a practical and efficient choice. In this article, we’ll guide you through the process of mortising a door hinge with a Dremel tool.

What You’ll Need

Before you begin, gather the following tools:

  • A Dremel tool
  • A door hinge template
  • A pencil or marker
  • Safety goggles
  • A chisel
  • A hammer
  • A screwdriver

Step-by-Step Guide

Step 1: Mark the Hinge Placement

Start by positioning the hinge template on the door edge and aligning it with the desired height. Use a pencil or marker to trace the outline of the hinge onto the door. Repeat this step for the door frame as well.

Step 2: Secure the Door

Next, secure the door in place using clamps or have someone hold it steady for you. This will prevent any unnecessary movement during the mortising process.

Step 3: Attach the Appropriate Router Bit

Choose a router bit that matches the size of your hinges. Attach it to your Dremel tool according to the manufacturer’s instructions.

Step 4: Set the Depth

Adjust the depth on your Dremel tool to match the thickness of your hinges. This step is crucial to ensure that the mortise is deep enough for the hinge to sit flush with the surface.

Step 5: Begin the Mortising Process

With your safety goggles on, turn on the Dremel tool and carefully start removing material within the traced outline. Take your time and work gradually, ensuring the mortise is precise and clean.

Step 6: Test the Fit

Once you’ve completed the mortise, test the fit of the hinge. Place it in the mortise and check if it sits flush with the door edge without any gaps. If adjustments are needed, use a chisel and hammer to fine-tune the mortise until the fit is perfect.

Step 7: Repeat for the Door Frame

Follow the same procedure to mortise the door frame, using the traced outline as a guide. Ensure that the mortise is aligned with the one on the door edge for a seamless fit.

Step 8: Screw in the Hinges

Once both the door and door frame are mortised, it’s time to attach the hinges. Place the hinges in the mortises and align them with the screw holes. Use a screwdriver to secure the hinges in place.

Step 9: Test the Door Swing

After securing the hinges, test the door swing to ensure it moves smoothly without any obstructions. If needed, make any necessary adjustments to the hinges or mortises.

Step 10: Finishing Touches

Finally, give your newly mortised door hinges a clean finish by removing any excess wood chips or debris. Sand the area lightly if required, and your door is ready for installation.


Mortising a door hinge with a Dremel tool is a straightforward process that can be accomplished with a little patience and precision. By following the steps outlined in this article, you’ll be able to mortise your door and door frame effectively, ensuring a seamless hinge installation. Remember to prioritize safety and take your time during each step for the best results. Happy mortising!