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)

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Delivery Information:

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*Next day deliveries for highlands & islands may take a little longer.