Read the instructions for the attachment you will be using to ensure that you are confident in your knowledge of the proper operating procedure.
Ensure that your Dremel is unplugged to prevent accidental injury.
Rotate the collet at the end of the Dremel where the attachments will be inserted to increase the radius of the opening. This will either be accomplished by hand, or using a provided wrench, depending on your model.
Insert the shaft of the attachment into the collet opening.
Tighten the collet securely around the shaft of the accessory.
- Dremel's "Flex Shaft" attachment allows a flexible extension which can transfer torque to a mounted attachment for easier use, which is perfect for using Dremel attachments in tight spaces.