The 10 Best Diamond grit Drill Bits (2023 reviews)

We consider a diamond grit drill bit to be a worthy investment in the long run. We are here to help you choose the right one for your needs from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: SHDIATOOL Diamond grit Drill Bit READ REVIEW

Best For glass: Buy: BGTEC Diamond grit Drill Bit READ REVIEW

Best For metal: Buy: Dkibbith Diamond grit Drill Bit READ REVIEW

Best For Angle Grinder: Buy: Dtdiatool Diamond grit Drill Bit READ REVIEW

Best For quartz: Buy: Brschnitt Diamond grit Drill Bit READ REVIEW

Best For reinforced Concrete: Buy: Hbkeen Diamond grit Drill Bit READ REVIEW

Best With stand: Buy: Vevor Diamond grit Drill Bit READ REVIEW

Best For Stone: Buy: SALI Diamond grit Drill Bit READ REVIEW

Best For Porcelain: Buy: HIGHDRIL Diamond grit Drill Bit READ REVIEW

Best For Granite: Buy: Jeremywell Diamond grit Drill Bit READ REVIEW

Best Overall: SHDIATOOL Diamond grit Drill Bit

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Vacuum brazed diamond drill bits are much better than most electroplated diamond drill bits. This thing makes punching through stucco a breeze. The High Quality Diamond Grain provides fast and smooth drilling. It works on a kitchen granite countertop.

• Dry/wet drilling for porcelain tile marble stone masonry brick normal stone
• New and hot release

Best For glass: BGTEC Diamond grit Drill Bit

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Next on the list, we've got yet another bit that manages to win our hearts. It's the bgtec diamond grit drill bit and it's widely considered as bit that has the most suitable features. These bits do a great job drilling through porcelain tile to allow installation of a shower door. Even though these are wax cooled bits add water to make drilling much easier. The diamond drill bit 14 mm with quick change hex shank can drill holes for granite marble porcelain tile ceramic. It takes two bits and approximately five minutes for each hole to get the job done given the density and toughness of the porcelain tile.

It gets quite hot so dip it in the water every 10 seconds or so to cool it. It is used to mount toilet paper holder.

• Really cuts well through hard stone
• Worked great cutting through ceramic tile
• Will work better with water to cool the bit

Best For metal: Dkibbith Diamond grit Drill Bit

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Next on the list, we've got yet another bit that manages to win our hearts. It's the dkibbith diamond grit drill bit and it's widely considered as bit that has the most suitable features. It includes 3 sizes of dry diamond core drill bits for drillingholes with diameter of 1/4“ (6mm), 5/16” (8mm) and 3/8” (10mm), to meetdifferent needs of hole. The Diamond drill bit integrates with wax lubricant inside which melts while dry drilling and cools the cutting surface. Although they are designed to be dry bits, they work better drilling wet. It can cut faster and last longer.

These inexpensive bits perform flawlessly in allowing anchors for a shower rod to be placed in glass bath tiles. During drilling, this integrated lubricant will melt to cool the cutting surface, perfect for which lubricant is not applicable. It comes with a storage case.

• Each bit comes with a storage case
• Great product and easy to use
• Fit a variety of quick-change chucks, drills or drivers

Best For Angle Grinder: Dtdiatool Diamond grit Drill Bit

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Next on the list, we've got yet another bit that manages to win our hearts. It's the dtdiatool diamond grit drill bit and it's widely considered as one of the best convenient bit you can buy. Chip evacuation holes make the escape of chips or other particles of the drilling quickly removed. It can be used on a 5/8" angle grinder. The Vacuum brazing technology makes the diamond firmly bonded to the matrix, and the diamond exposure is higher, the processing efficiency is higher, and the service life is longer. It is great with the grinder and a little pressure. Timely chip removal ensures to a certain extent that the inside of the drill is not blocked, and can quickly dissipate heat. It is easy to use and works great easier to use with a little water. They also come with an adapter for a drill.

• Drills bits for dry or wet drilling holes
• Ideal for drilling the faucet mounting holes in countertops, plumbing lines in showers
• Great set of hole cutters, for ceramic tile
• Nice tool for diy, works well, good quality for the money

Best For quartz: Brschnitt Diamond grit Drill Bit

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Not everyone likes to purchase bit for their daily usage, but the brschnitt diamond grit drill bit would be an anomoly. It is great for dry drilling holes through granite marble hard stone reinforced concrete brick block counter top, using water could prolong the lifetime. It creates a fast and stable drilling, so you can drill smoothly with no broken edges. It can be used with handheld drills, requires an adapter.

The maximum drilling depth is about 3", it can drill quartz stone with a thickness of 2".Choose the corresponding size according to the diameter of the hole you want. The bit cuts quickly and cleanly. It offers clean cut & steel core protection.

• You can core granite without water
• Good investment for long term

Best For reinforced Concrete: Hbkeen Diamond grit Drill Bit

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The hbkeen diamond grit drill bit is satisfactory and appropriate and fits well with your daily purpose.

• Lot of satisfied buyers
• New and hot release

Best With stand: Vevor Diamond grit Drill Bit

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Not everyone likes to purchase bit for their daily purpose, but the vevor diamond grit drill bit would be an anomoly. This diamond core drill comprises premium aluminum alloy components, and high. It is good for a couple of jobs. It comes with 5/8"-11 universal thread, and this core drill bit allows easy and fast assembling to a standard fixed core or hand-held drilling machine. It allows it high drilling performance while keeping a long lifetime.

The core drill can be used for both dry and wet to content your work needs. It is also suitable for various devices.

• 25 hours of actual powering (slowly) through about an inch per day
• Definitely is worth for diy projects
• Cuts through brick and cinder blocks easily

Best For Stone: SALI Diamond grit Drill Bit

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The sali diamond grit drill bit is suitable and reliable and fits well with your daily usage. This diamond core drill comprises premium aluminum alloy components, and high-quality diamond grits ensure longer coring liferecommended to use with handheld core drills or dedicated core drill rigs. It allows it high drilling performance while keeping a long lifetime. These core drill pilot bits are equipped with cooling chip removers for fast chip removal, aiming to operate directly on the wall and reduce noise.

The core drill can be used WET ONLY. The core drill is elaborate aluminum alloy, selected diamond teeth, and high-frequency welding technology, providing steady and rustproof welding technology, providing steady and rustproof welding technology. It is suitable for most types of machines in the market.

• Delivers what they promise
• Lot of satisfied buyers

Best For Porcelain: HIGHDRIL Diamond grit Drill Bit

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Next on the list, we've got yet another bit that manages to win our hearts. It's the highdril diamond grit drill bit and it's widely considered as one of the best convenient bit you can buy. This diamond drill bits set comes with a portable storage case for convenient use and store. It's designed with hole and groove in the side of the drill bit for removing stone chips. Wax are inserted to the drill bit for cooling and lubrication, without adding water.

• Lot of satisfied buyers
• Good investment for long term

Best For Granite: Jeremywell Diamond grit Drill Bit

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The jeremywell diamond grit drill bit's superior materials makes sure that it ages well with use. It allows fast drilling with a longer life. It is designed for drilling hard concrete, masonry, hard brick, granite, and other hard materials.

• High diamond concentration for excellent footage and drilling speed
• For use on hand held core drills and core drill stand
• Good brand reputation