I've been drilling holes in natural materials for years and these are the best drill bits I've used by far for the price.  You can get more expensive ones that will do a few more holes but for value per hole these are head and shoulders above the rest.  I've bought more expensive bits that have done less holes too.

Use with a wet sponge to cool the bit.  It picks up the debris and makes the job quick, easy and clean.

 

Best Seller : Bathroom Kit
£122.00

Multi Pack: 
2 x 6mm
2 x 8mm
1 x 16mm
1 x 30mm
1 x 40mm

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Diamond Tipped Drill Bits - 6mm, 8mm or 10mm
£10.95

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - 12mm, 14mm, 16mm, 18mm
£19.15

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - 20mm, 22mm, 25mm, 28mm
£21.75

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - 30mm, 32mm, 35mm
£23.75

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - 38mm, 40mm, 42mm, 45mm
£24.75

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - 48mm, 50mm, 53mm, 55mm
£27.25

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - Even Bigger Sizes
£47.99

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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Diamond Tipped Drill Bits - 100mm +
£58.99

For drilling porcelaine, ceramic, travertine, marble and granite - worktops, pottery, slate, glass and much, much more.

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