![]() ![]() The tiny diamond particles that diamond drill bits are tipped with don’t carry the price premium of high-clarity cut and finished gems. You’re probably used to thinking of diamond as an expensive material, but don’t worry, diamond-tipped tools aren’t going to run into engagement ring price territory. This attaches firmly to the surface being drilled, usually with a suction cup or clamp, and helps keep your bit in the right position. Most bits of this type don’t have the center guide you might be used to with conventional wood hole saws, so you’ll also need an adjustable drill guide. These have tiny bits of diamond embedded in the rough surface around the bottom edge, and will cut very clean circles out of quartz. Diamond drill bits are handy to have around for working with more than just quartz – they’ll also make short work of porcelain tiles, heavy glass, and hard stone like slate.Īlthough you can find diamond-tipped bits in the “corkscrew” shape you’re probably used to with other drill bits, hollow-core “hole” type bits will work much better. It’s much harder than quartz and will cut through it with no trouble. Diamond is the hardest natural material on Earth, and can cut virtually anything diamond itself is so resistant to damage from other materials it’s typically cut with a laser. What you need for working with quartz (and other materials too hard for steel bits) is a bit tipped with the material that tops the hardness scale: diamond. However, the simple fact that quartz countertops exist implies that there are tools out there that can successfully cut it, since quartz crystals don’t naturally grow into convenient countertop shapes. Take a steel drill bit to quartz and all you’ll do is dull the bit. ![]() Quartz has a Mohs hardness of 7, meaning it will cut steel rather than the other way around. When you bought your first drill, the multi-purpose bits you got with it were probably made of steel, which has a Mohs hardness of around 5 and is more than hard enough to cut through wood, masonry, and most metals. A material with a higher Mohs number will damage one with a lower number when they’re scratched against each other for instance, pure iron (Mohs 4) will always scratch pure gold (Mohs 3). Hardness is measured using the Mohs scale, a simple scale from 1 to 10. The difficulty with drilling into quartz comes from the same quality that makes it such a sought-after material for kitchen surfaces: its hardness. Quartz is an increasingly popular choice for kitchen worktops, often seen as a superior alternative to granite. For quartz, that means a diamond-tipped drill bit designed for cutting very hard materials, and a cautious approach that keeps your workpiece and tools from overheating. ![]() Yes with the right tools and the right approach you can drill into quartz.
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