February 11, 2022

How to Change Dremel bit

Dremel is a rotary tool with various attachments and bits to allow you to do everything from sanding to drilling. The bit is the part of the Dremel that does the cutting. It needs to be changed regularly depending on the task at hand. Here we will show you how to change the bit on your Dremel.

How do I change the bit on my Dremel?

  1. Turn off and disconnect your Dremel from the power source. Unplug your Dremel tool if you have a model with a cord, but if you have a cordless model, take out the battery. That is done to ensure that you do not accidentally turn it on, thereby preventing accidental injuries or damaging the tool.
  2. Press down and hold the button on the side of the Dremel near the chuck nut, which is the outer metal part at the tip of the Dremel, holding the bit. There is a small button on the side of the Dremel near the chuck nut. Hold it down. The button is a security lock that loosens the chuck nut so you can replace the bit. 
  3. Use a wrench to turn the chuck nut counterclockwise to loosen it. Dremel tools come with a small wrench that fits the chuck. You can use any other wrench that fits if you have lost the wrench that came with your Dremel. Loosen the chuck nut with the Dremel wrench and use your fingers to unscrew it. Pull the bit out.
  4. Remove the bit from the collet. The collet is the small metal part inside the chuck nut that holds the bit. Set it aside in a secure place.
  5. Put the new bit you want to use in the collet. Loosen or tighten the chuck nut with your fingers to adjust the collet to the size of the new bit. If the bit you want to use is too big or small for the collet in your Dremel tool, replace the collet.
  6. Tighten the chuck nut with a wrench to secure the new bit in place using a Dremel tool. Your Dremel tool is ready to use with the new bit. Changing a Dremel bit is similar to changing any drill bit. The way you release the chuck nut and loosen the collet differs from tool to tool, but the concept is the same.

How do I attach a Dremel attachment?

  1. Turn off the Dremel and unplug the power cord from the wall outlet to avoid injuries. Locate and hold the collet lock button with your thumb. 
  2. Turn the collet nut counterclockwise with the Dremel wrench or a small wrench that fits the nut. The collet nut works like a chuck on a drill to secure the shafts of accessories.
  3. Insert the shaft into the center of the collet until it seats into the Dremel. Twist the collet nut clockwise until it is hand-tight. Turn the nut another 1/4-turn with the wrench.
  4. Remove the nose cap on the front of the Dremel if your accessory requires attachments such as grout removal, chainsaw sharpening, and a multi-purpose cutting guide. Turn the nose cap counterclockwise to remove it from the Dremel. Thread the Dremel attachment onto the Dremel clockwise until it is tight.

How do you attach a Dremel head?

  1. Unplug the Dremel and turn it off. 
  2. Hold down the shaft lock button on the operating end of the tool.
  3. Slide the Allen wrench into the nut on the top of the Dremel, and turn the nut to the left to open the housing holding the head. Release the shaft lock button and pull the Dremel head out of the Dremel tool. 
  4. Unscrew the top of the head and remove the blade from the shaft.
  5. Select a new blade to use on the head. Slide the Dremel blade onto the Dremel head and screw the top piece back onto the Dremel head. Tighten the head so that the Dremel blade does not move in any way. 
  6. Insert the bottom of the head into the housing at the top of the Dremel tool. Screw in the nut and tighten the nut.
  7. Press the shaft lock button to keep the nut from being turned while in use.

How do you attach a Dremel flexible shaft?

  1. Unscrew the nose cap from the end of the Dremel by twisting it to the left. 
  2. Press and hold the collet lock button.
  3. Keep the collet lock button depressed and twist the collet nut to the left to remove it. Place the nut to the side. Grip the collet and pull it to remove it from the Dremel.
  4. Insert the drive nut in place of the collet. 
  5. Tighten the nut using your fingers. Twist the nut to the right until it stops moving. 
  6. Thread the attachment through the nut and tighten the outer housing.

How do I attach a sanding attachment to a Dremel?

  1. Unplug your Dremel rotary tool. Loosen the collet using the collet wrench and remove the accessory in the collet, if any.
  2. Slide a Dremel mandrel into the collet and tighten it with the wrench. Loosen and remove the tip screw from the mandrel.
  3. Insert the mandrel tip screw through the hole in the center of a sanding disc. Tighten the screw into the mandrel.
  4. Plug the Dremel rotary tool into an electrical outlet and turn the variable speed selection switch.

How do you attach a Dremel blade?

  1. Please turn off the Dremel and unplug it.
  2. Use the included wrench or a small wrench that fits the nut to turn the lock nut counterclockwise.
  3. Insert the blade through the center of the sleeve until it fits snugly into the Dremel.

How to change Dremel bit 4000

  1. Turn off the Dremel.
  2. Press down and hold the button on the side of the Dremel near the chuck nut.
  3. Loosen the chuck.
  4. Remove the bit.
  5. Place the new bit.

How to change Dremel multi probit

  1. Remove the housing cap from the tool.
  2. Insert the grout removal bit into your rotary tool.
  3. When inserting the bit into your Dremel rotary tool, be sure that the bit is secure within the jaws of the collet. 
  4. Use the wrench to tighten the collet nut.
  5. Screw the grout removal attachment onto the rotary tool.
  6. Adjust the attachment and bit to the desired cutting depth.

Dremel bits explained

Dremel bits are highly durable tungsten carbide carving accessories used for more aggressive applications to shape, smooth, or grind materials such as metals, hardened steel, fire ceramics, cast iron, plastics, and hardwoods. Dremel bits are grinding, polishing, cutting, wood carving, engraving, sanding, cleaning, grout removal, sharpening, routing, and drilling.

How to tighten Dremel bit

Tighten the collet by using your hands, then use the fastening button to ensure the Dremel bit and collet lock. You have to click the sound that gives you accurate information whether the tool bit has locked or not.

How to change Dremel bit model 395

  1. Press and hold the Shaft Lock Button near the front edge of the tool.
  2. Unscrew the metal collet nut on the end of the shaft by turning counterclockwise.
  3. Unscrew the plastic housing cap front at the end of the tool by turning counterclockwise.
  4. Remove the collet from the motor shaft.
David D. Hughes
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