Diamond Coated Drill Bits

These quality twist drills are electroplated with diamond particles, they are the ultimate for drilling glass, gemstones, sea glass, pearls or ceramics (for drilling metals use a regular steel drill bit, C162). The technique for drilling is slightly different from the drilling metals; they need to be used at a slow speed and water must be used as a lubricant. They are available in a variety of useful diameters.

If you are not familiar with the technique, we recommend purchasing our 'Using Diamond Coated Drill Bits' advice leaflet. 

Read our step by step tutorial on how to drill sea glass here.

If you are considering purchasing these for enlarging the holes in beads you may prefer our deluxe bead reamer set which is specifically designed for this purpose. 

• Size:

         1mm (18 gauge) (0.65mm shank)
         1.5mm  (15 gauge) (1.2mm shank)
         2 mm (12 gauge) (1.68mm shank)

• NB If you are intending to use these drill bits with a Dremel 4000 you will need a multi chuck tool

All of our products are covered by our guarantee.

THESE WORK! (by Barbara 01/02/2019)

5  |  Full Review »

See all reviews »

Delivery Information:

Orders placed before midday are despatched the same day (wherever possible), Monday to Friday, excluding bank holidays.

*Orders for Next Day Delivery must be placed before 12pm, Monday to Friday. Heavy orders weighing over 1.5Kg must be placed before 10.30am - usually only orders containing machines and multiple tools. You will receive your order the following day not including Saturday & Sunday (Deliveries for highlands & islands may take a little longer). Next day and Saturday Delivery are signed for services. 

Click here for full delivery information & international options