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Diamond Drill Bits Set for Your Dremel Tool


This exciting set is just what you're looking for if you have a Dremel Rotary Tool and wish to start drilling small holes in pebbles, drilling holes in sea glass, shells or pieces of pottery shards, china or ceramic.

The set contains the following:

  • Dremel Multi Chuck 4486 in original Dremel packaging
  • 1mm Small Diamond Drill bit
  • 2mm Small Diamond Drill Bit
  • 1.5mm Small Diamond Core Drill 
  • 2.5mm Small Diamond Core Drill

Perhaps you've just bought a Dremel 3000, Dremel 4000, (or similar Dremel model), and a Dremel flexible shaft 225 and would like to start making jewellery or wish to embark on a new hobby, some DIY or a craft skill? This is the perfect starter kit for you. Looking for a tool kit for drilling sea glass? this is the one! Read the next description tab to find out a little bit more...

If you already have a Dremel Multi Chuck and wish to purchase the Small Diamond Drill Bits and Small Diamond Core Drills, the individual sizes in this set can be purchased from the relevant product pages.

***The Dremel Multi Chuck 4486 in this set is a genuine Dremel 4486 chuck in original Dremel packaging. Beware of cheap imitations***

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Dremel Multi Chuck 4486

This Dremel chuck can be used with rotary tool models 3000, 4000, 8220, Lite, 4300, Stylo+, Micro, 7700, 8100, 8200, and 200. 

Also for use with Dremel attachments 212, 225, and 575. Not for use with 4200.

This Drill Bit Set for your Dremel contains some of our most popular size diamond drill bits along with a Dremel Multi Chuck 4486 to hold them with, and will allow you to drill holes in a number of hard materials:

  • Drilling holes in pebbles, small stones or slate pieces
  • Drilling holes in Sea Glass, beach glass or small glasswork
  • Drilling holes in shell or bone
  • Drilling holes in pieces of china, ceramic, porcelain, beach pottery, glazed pottery

Simply attach the Dremel Chuck to your Dremel Tool and using one of the diamond drill bits or diamond core drills start drilling and create something beautiful. Always remember:

  • Use diamond drill bits wet to ensure cleaner cutting, and preserve the life of your drill bit.
  • Set your Dremel Multi Tool to the lowest speed setting. Do not exceed 10,000 RPM.
  • Use very little pressure, let the weight of your rotary tool do the work.
  • Always use protective eyewear and a mask.

We have a number of easy-to-follow tutorials on how to drill holes in hard materials, take a look at these for some guidance:

  1. How To Drill Pebbles
  2. How to Drill Sea Glass
  3. How To Drill Through Glass

Some helpful notes and possible queries about the contents of your kit:

There are two Dremel attachments that can be used to hold these small diamond drill bits, the Dremel Multi Chuck 4486 which you have in this set, and the Dremel Collet Nut Kit 4485. 

We have chosen the Multi Chuck for you as it is very popular when using drill bits and attachments that have different shanks (the end that goes into your rotary tool, not the drill bit end) as it is easy to change between drill bits without the need for a wrench and various collets. Simply twist to open the teeth on the chuck and release or tighten in the new drill bit.

The Dremel Multi Chuck 4486 will fit all Dremel Drills except Model 4200 and will also fit a Dremel Flexible Shaft.

Your set has two popular sizes of Small Diamond Drill Bits: 1mm and 2mm and two popular sizes of small diamond core drills: 1.5mm and 2.5mm. These sizes have been chosen as they are ideal for most jewellery making purposes when you need to make a hole in hard materials. All these drill bits and more can also be purchased by clicking here.

The small diamond drill bits have a solid end and are long-lasting, and are particularly good for those extra tough pieces of sea glass, fused glass or stones. 

The small diamond core drills have a hollow core running through the drill bit which allows water to swirl up and around inside the core to keep the drill bit cool. They have a smaller surface area than the small diamond drill bits so may not last as long but tend to drill holes more quickly. Great for the beginner.

More questions and answers about diamond drill bits and drilling hard materials can be found in this informative article 12 Things You Should Know About Drill Bits .

"Absolutely impressed with eternal tools. I am making glass pendants rings and earrings and have ordered diamond point burrs, cone burrs and drill bits for my Dremel. They cut through glass with ease. Excellent quality and fast delivery. Also brilliant descriptions of each item and its intended use on your website. Makes purchasing the correct bits very easy. I will not shop anywhere else now" - Emma Morgan


Dremel Multi Chuck 4486

  • Dimensions: 10 x 5.1 x 2.5cm
  • Weight: 18g

Small Diamond Drill Bits

  • Diameter: 1mm and 2mm
  • Overall Length: 38mm
  • Diamond tip length: 4mm

Small Diamond Core Drills

  • Diameter: 1.5mm and 2.5mm
  • Overall length: 65mm
  • Diamond tip length: 4-6mm

Questions & Answers

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Other questions and our answers

Hello, I have enjoyed your website and blog! I have a Dremel Micro 8050 N/18. Would this drill bit set fit? Thank you, Lauren Sayers


Thanks Lauren, that's great to hear.  The Dremel Multi chuck can be used with their rotary tool models 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8220, 8200, 800, 780, 770, 7700, 750, 8050. 

So, yes this will be compatible with your rotary tool. Happy Drilling!

Will this diamond drill bit set fit my Dremel 7700 series?

Yes this drill bits set will fit your Dremel 7700. 

do these diamond drill bits work with the Dremel 3000?


Yes, the Dremel Multi Chuck 4486 included with this set works with most Dremel models, inlcuding the Dremel 3000. 

Please could you advise whether the diamond drill bits will drill holes in quartz beach stones? Thank you.


You will need to use the small diamond drill bits, of which this set has two, 1 x 1mm and 1 x 1.5mm

Please note that any pebble that has Quartz or flint running through it are the hardest to drill and take the longest to drill, have a read of the section entitled 'Choosing a good pebble to drill' in this article we wrote: How To Drill Pebbles

Does this kit fit the new Dremel Micro ? Thx in advance Cecilie

Cecilie T. Jacobsen

This kit  will fit the  Dremel Micro 8050, also models: 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8220, 8200, 800, 780, 770, 7700, 750

I need a drill and small bits to put small holes into pebbles, these need to be wet (sat in a shallow tray of water to do this) is this item suitable? Thank you Samantha :)

Samantha Edwarda

Yes, we have just the tools. Use a Dremel 3000 drill with the Dremel collet nut kit or a Dremel Multi Chuck and some small diamond drill bits. You might like the Diamond Drill Bits set for your Dremel. This set contains 2 x small diamond drill bits and 2 x small diamond core drills, in different sizes, all ideal for drilling holes in pebbles.  Our article on How to Drill Pebbles might also be helpful for you. If you want to buy the diamond drill bits individually without being part of the set please click here.

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