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Small Diamond Drill Bits

DDB1

Bulk Discounts

Quantity Purchased Price
1 - 4 £5.50
5 - 9 £4.50
10 - 24 £3.45
25 + £3.05

Sizes available:  0.75mm, 1.00mm, 1.25mm, 1.50mm, 2.00mm, 2.50mm, 3.00mm

These precision made small diamond drill bits are excellent for drilling small holes in some of the hardest materials around. Very common with jewellery makers, these diamond drill bits are used for drilling holes in shells, drilling holes in glass, drilling holes in beads, drilling holes in sea glass and drilling holes in stone, gemstone, concrete and pebbles.

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Description

You will need a Dremel 4486 Multi Chuck or a Dremel 4485 Collet Nut Kit to hold these small drill bits if you do not already have an attachment on your drill.

In order to get the best from our diamond tipped drill bits, please ensure you read through the Tutorials section on our blog before attempting to use our drills for the first time. Here you will find tips and video footage on how to drill glass, how to drill gemstones, how to drill bottles, how to drill pebbles and how to drill sea glass. There are also helpful hints on the correct speeds and pressure to be used.

You might also like to read our article: 12 Things you Should Know about Diamond Drill Bits

Tip: Always use with plenty of cold water, slow speed, little to no pressure

Disclaimer. Using rotary tools near water has never been, to the best of our knowledge, endorsed by any of the rotary tool manufacturers. If you do choose to drill near water or with attachments under water connected to your drill then you do so at your own risk. Please be aware that mixing electricity and water can be very dangerous.

Technical

Diamond grit is precisely electroplated onto a steel shank

Diameter: 0.75mm

  • Overall length: 28mm
  • Diamond tip length: 4.00mm
  • Shank: 0.50mm

Diameter: 1.00mm

  • Overall length: 38mm
  • Diamond tip length: 3.50mm
  • Shank: 0.70mm

Diameter: 1.25mm

  • Overall length: 38mm
  • Diamond tip length: 5.00mm
  • Shank: 0.85mm

Diameter: 1.50mm

  • Overall length: 38mm
  • Diamond tip length: 4.00mm
  • Shank: 1.10mm

Diameter: 2.00mm

  • Overall length: 38mm
  • Diamond tip length: 3.50mm
  • Shank: 1.50mm

Diameter: 2.50mm

  • Overall length: 38mm
  • Diamond tip length: 3.50mm
  • Shank: 2.00mm

Diameter: 3.00mm

  • Overall length: 44mm
  • Diamond tip length: 12mm
  • Shank: 3.00mm

Diameter: 3.00mm x 2.35mm

  • Overall length: 42.5mm
  • Diamond tip length: 12mm
  • Shank: 2.35mm

Customer Reviews

Good
As Above
They do wear out but as one would expect drilling sea glass
Excellent
Excellent
Very good durable drills, that my daughter uses to drill sea glass.
Drilling bits turned out perfect for drilling holes in glass. Keep it up.
I made the mistake of buying some cheaper drill parts, and wished I had just come to this company first and paid for quality, reliable items. Would definitely recommend.
They worked a treat - especially the 1mm ones. Managed to bend a couple but that's because they are very fine, not because they aren't up to scratch. Will have to order some more and be slightly less heavy-handed in future.
The small diamond drill i bought worked perfectly drilling a hole in a small piece of cut glass or rock crystal
Did the job they were supposed to do.
Ordered the wrong ones this time - meant to get small diamond core drills. These ones are fine but not as good as the core drills which are brilliant!
Exactly what I needed............................................
Work well very pleased with the performance
Does what it says on the tin, actually the drill bit
Excellent
This drill acts as though it would cut anything offered up to it.
Excellent
As Above
Very please with drill bit. Bought to make small holes in shells, glass and pebbles. Great on shells, hard work on glass and pebbles, haven't made good progress. First time I have tried this, so am a little unsure if I am doing it right. May be a point on the end not flat. Bits jumps around. But that's me not the goods.
Excellent
These tiny drills are perfect for the job
Excellent
Advised which type of small diamond drill to use for drilling agates--a very hard stone
Have not used these them yet,but hope to very soon.
Brilliant tools bits & will always order more when these have worn away or broken
drilled hole in pebble. RESULT!
Excellent
Pleased with product have used for drilling sea glass
Great product. Great service
Very happy with the drill
Hard to find these little diamond drills except on eBay or Amazon......and then you tend to think they will be cheap rubbish. Eternal drills have proven to be good quality and pretty long-lasting, just a little expensive. I guess you get what you pay for. Up to now I have found when they wear out, they fail quickly so it's best to have another one ready to go. This, of course, makes it easy to know when to change instead of spending increasing lengths of time to drill a hole. I will definitely buy more and also recommend them to others.
Good
The drills worked well as new, but performance declined with use after boring rocks.
Excellent
Like cutting through butter
I have found these are really good, as I drill holes in my glass

Questions & Answers

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Other questions and our answers

I want to enlarge some very small holes in 4 -6 mm rough uncut diamond beads. I need the holes to be 1mm. to accommodate .8 - 1 mm silver wire. Would the drill bits be suitable for this? Should I use a twisted or core drill bit?

Jane

To enlarge holes you need to use the Small Diamond Twist drills. 

These are ideal for increasing the size of holes in beads once the hole has been drilled. 

Will your drill bits fit my drill?

Clare

Hi Clare, Our drill bits will fit all rotary drills so long as you have an adjustable collet or chuck with which to hold the shank of our very small drill bits. Sometimes when buying a drill they will come with an adjustable collet but if you find you are in need of one then we supply either a Dremel Multi Chuck (DMC4486) or a Dremel Collet Nut Kit (DCNK4485).

Will the small diamond drill bits work in a drill press ?

Ann

Hello Ann, Yes they work perfectly well in a drill press.  They will work in any drill so long as there is an adjustable chuck to hold the shank of the drill bits. 

Hi, I want to order diamond bits to drill 1mm holes in 500um thick borosilicate glass wafer. Could you please tell me if 0.75mm diameter drill bit would be perfect for that or not. Also, what other items I would need to drill hole along with drilling machine. Besides, could you suggest me which drilling machine would be sufficient for this job. Thank you. Best Regards Deepika Sharma

Deepika Sharma

Hi Deepika,

Good to hear from you. We recommend using a Dremel 3000 drill with a Dremel Multi Chuck and use either the small diamond drill bits or the small diamond core drills. If you are new to drilling holes in glass we recommend trying the core drills first. The size of the core drill indicates the size of the hole you will achieve, so if you need a 1mm hole, you will need to purchase the 1mm diamond core drills. All the best with the project.


Hi, I need a diamond drill bit for my Dremel 3000 for use on semi-precious stones. Do you have these in stock? Many thanks.

Jean Johnson

Hi Jean, Yes you're on the right page, the Small Diamond drill bits are ideal for drilling through semi-precious stones and other such hard materials.  You will need an adjustable chuck to hold the very tiny shanks of these drill bits into your drill. For your Dremel we recommend the Dremel Multi Chuck.


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