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VEVOR makes a wide range of diamond core drill bits for professionals, builders, and serious do-it-yourselfers who need to make clean, accurate holes in tough materials. Our collection includes drill bits for every thickness, shank shape, and material you need, whether you're drilling through glass, ceramic tile, natural stone, or reinforced concrete. Check them all out to get the right bit for your next job.
Having trouble with chipped tile edges, cracked stone, or oversized holes caused by standard twist or masonry bits? Instead of cracking, chipping, or damaging the surface, VEVOR diamond core drill bits use industrial-grade diamond segments to make exact, smooth holes in the hardest materials on the job site. VEVOR offers diamond core drill bits in a wide range of sizes and material specifications to suit your job or project.
To pick the right diamond core drill bits, first make sure the bit's diameter fits your needs and that it is designed for the material you are drilling. VEVOR's entire product line accounts for both of these factors.
For precise drilling tasks in tile installation, glass work, bathroom fitting, and kitchen wall projects where clean hole edges are important for the final look, small-diameter diamond core drill bits from 6mm to 25mm are most common. In this range of VEVOR small-diameter diamond hole saw bits, the fine diamond grit segments prioritize smooth cutting over aggressive material removal. This creates chip-free edges on ceramic, porcelain, and glass surfaces that don't require any extra finishing after drilling.
Because it is so hard and brittle, porcelain tile is among the hardest materials to drill with a small-diameter bit. VEVOR's diamond core drill bits for porcelain use feature sintered diamond segments that maintain constant cutting force throughout their life, unlike electroplated alternatives that quickly break down after the initial surface coating wears off. This difference in construction means that each bit can drill more holes, reducing the cost per hole on large tile installation jobs.
It is necessary to use water cooling when cutting glass with VEVOR’s small-diameter diamond hole saw bits. It keeps the glass from overheating and cracking around the hole. For VEVOR's glass-rated small-diameter bits, the open segment geometry allows cooling water to reach the cutting face continuously throughout the drill cycle. It keeps cutting temperatures within safe limits and produces clean, crack-free holes through both tempered and untempered glass panels.
Mid-range diamond core drill bits with diameters between 28 mm and 65 mm are most useful for drilling holes in stone fabrication, masonry construction, and renovation projects that require drilling through tough wall and floor materials for pipe penetrations, anchor bolts, drainage fittings, and cable conduits. Larger VEVOR diamond core drilling bits feature larger diamond grit segments and deeper water channels than smaller precision bits. This feature is because thicker stone and masonry materials are harder to cut, so the bits focus on removing material faster and keeping cool.
Natural stone types like granite, marble, sandstone, and limestone each present different drilling challenges due to their hardness, grain structure, and brittleness. VEVOR's mid-range diamond core drill bits are made with segment-bonded hardness grades selected for optimal performance with the natural stone types most commonly used in countertop fabrication, flooring installation, and architectural stonework. For softer stones, a harder bond grade is best because a softer bond would wear out too quickly. On the other hand, a softer bond grade is best for harder stones because the bond needs to constantly release worn diamonds and reveal new cutting edges.
When drilling through brick and block masonry, this range of diameters includes installing through-wall services, fixing window and door hardware, and HVAC penetrations. It is important to have clean hole edges and controlled drilling to prevent vibrations from damaging the mortar joints around the holes. For masonry work, VEVOR's medium-diameter diamond core drill bits provide the steady, low-vibration cutting action of wet core drilling, as opposed to percussion or hammer drilling, which can put stress on the structures around the brickwork.
If you need to drill through load-bearing concrete elements, you'll need diamond core drill bits with diameters ranging from 68 mm to 200 mm, or even larger. These bits are perfect for the toughest structural drilling jobs in reinforced concrete, foundation work, and commercial construction. VEVOR’s large diamond core drilling bits are engineered with professional-grade segment formulations and reinforced barrel construction to handle the high torque and thrust forces generated. This means that the bits don't bend or lose segments too soon.
When drilling through reinforced concrete with steel rebar, it can be tricky because the bit has to transition from cutting through tough aggregate concrete to cutting through or around steel bars without damaging the diamond pieces from the shock of steel contact. When drilling in reinforced concrete, where rebar contacts are common, VEVOR's rebar-rated large-diameter diamond core drill bits feature tougher diamond grades and impact-resistant segment bonds.
For large structural drilling jobs, both core depth and diameter are important specs. This is because many concrete walls and slab penetrations require drilling through 200mm to 500mm of material in a single continuous operation. VEVOR's large diameter diamond core drill bits come with longer barrels and suitable extension rod systems that let you keep drilling to the full depth without having to take the bit out to clear the core or start over from the other side.
The best and most cost-effective option for builders, tilers, plumbers, and other construction workers who need to drill holes of different sizes for various materials and projects is to buy a set of core drill bits with varying diameters. One of VEVOR's diamond core drill bit sets usually comes with 6 to 12 bits, with diameters ranging from 6 mm to 68 mm or more. This way, you can use the set for a wide range of common drilling tasks without having to buy separate bits for each size.
In VEVOR's diamond hole saw bits range, set configurations are based on the most common diameters used in different trades. For example, tile and glass sets focus on the 6mm to 50mm range, which is best for installation work. Masonry and concrete sets, on the other hand, include larger diameters that are better for service penetration and construction drilling. Instead of buying a generic set that leaves some sizes unused, choose the setup that best suits your primary trade application. This way, you can be sure that every bit in the set gets regular use.
The storage cases that come with VEVOR's diamond core drill bit sets keep the bits organized, protect them from damage when they come into contact with other tools, and make them easy to find on a busy job site, where loose bits often get mixed up with other tools or get broken when stored without protection. When you store bits in an organized way, it's also easy to check whether a certain size is missing from the set before you leave for a job, rather than finding out after you get there.
The type of shank determines which drilling tools your diamond core drill bits are compatible with, and how well they withstand demanding conditions of hard-material drilling depends on the type of shank they have and their durability. VEVOR puts both of these traits in every part of the range.
There are different shank configurations for diamond core drill bits that determine which drilling equipment they will work with. It is just as important to choose the right shank type for your drill or core drilling rig as it is to choose the right diameter and material specification. For standard drill chucks, VEVOR's diamond core drilling bits come with straight cylindrical shanks. For rotary hammer drills with light to mid-range diameters, they come with SDS-Plus shanks; for heavy-duty core drilling rigs used on large-diameter structural work, they come with SDS-Max or Weldon flat-drive shanks.
VEVOR's range of straight-shank diamond hole saw bits is the most universally compatible option for small-diameter drilling in tile, glass, and light masonry, where torque and thrust forces are within the capabilities of standard drill equipment. They fit standard three-jaw drill chucks on both corded and cordless power drills. When used with straight-shank, small-diameter bits, a pilot drill or guide accessory helps keep the bit in the right place during the first contact stage of the drill cycle, before it cuts a hole in the material.
Attaching SDS-Plus shank diamond core drill bits to the rotary-only mode of SDS rotary hammer drills that are compatible is easy because the spline drive link, a type of connection that transfers more torque than a jaw chuck, allows for quick bit changes without a chuck key. In tile, stone, and masonry work, VEVOR's mid-range diamond core drilling bits are compatible with SDS-Plus and work well with rotary hammer drills in hammer-off mode, providing a balance of torque delivery and smooth rotation for clean, wet core drilling results.
The diamond segments attached to the cutting face of a core drill bit are what actually cut through the material. The bit's performance and durability depend entirely on the quality of these segments, including their diamond grade, concentration, and bond matrix formulation. When VEVOR makes core drill bits with diamond segments, it uses industrial-grade synthetic diamond particles in formulations engineered for specific material hardness ranges. This ensures that each bit has the appropriate cutting force, wear resistance, and heat tolerance for the material it is intended for.
The last important quality difference between professional-grade diamond core drill bits and cheaper ones that fail prematurely due to segment loss rather than slow diamond wear is the segment-gluing method. VEVOR's range of core drill bits uses either laser welding or high-temperature silver brazing to attach diamond segments to the steel barrel body. These methods create segment-to-barrel bonds that can withstand the thermal cycling, water exposure, and mechanical stress of professional wet core drilling. They also avoid the risk of segment detachment associated with adhesive-bonded segments, which can suddenly fail during a cut.
VEVOR diamond core drill bits offer a range of diameters, compatibility with various materials, shank adaptability, and segment quality that professionals and serious do-it-yourselfers need for drilling. VEVOR has the right bit for your job at a price that makes sense, whether you need a set of precise, small-diameter diamond hole-saw bits for tile work or large-diameter diamond core-cutting bits for drilling into concrete. Explore the full collection for faster, cleaner cuts in all hard materials.
By flushing away waste and removing heat from the cutting face, water cooling helps most diamond core drill bits cut more efficiently and last longer. Continuous water cooling is especially important for small-diameter glass and tile bits to prevent heat induced cracking. There are dry-cut-rated bits for when water isn't available.
Yes, for types with a small diameter and a straight shank, up to about 50 mm in diameter. Larger diameters create torque and thrust loads that are too high for a normal cordless drill to handle. For these jobs, you need a core drilling rig or a strong corded rotary drill. For each VEVOR diamond core drill bit diameter, check the recommended drill type.
Once the diamond layer on the surface of an electroplated bit wears away, the bit’s cutting performance drops significantly. Diamonds are evenly distributed throughout the sintered bit segment. As the segment wears, new diamonds are exposed, providing the bit with uniform performance and a much longer useful life.
Always use water to cool the drill, keep the speed steady and reasonable without putting too much pressure on it, and keep the drill in rotary mode only, without hammer action. Starting the cut at a slight angle to make a groove before moving to a vertical position helps keep the bit from skating across the glazed tile when it first contacts it.
