- High Compatibility: This set includes a 4-1/4-inch diameter core drill bit, three adapters, and one pilot drill, making it compatible with most standard drills and hammer drills.Combine versatility and convenience for various tasks
- Precise Positioning: Our diamond dry coring bit comes with a pilot drill, no need for pre-drilling. The sharp tip quickly penetrates the surface, allowing for faster and more accurate positioning, ensuring smooth operation without switching modes
- Durable & Sturdy: Crafted from quality carbon steel with high-precision welding, this concrete core drill bit boasts 95HRB hardness. It resists heat buildup during high-speed drilling or dry operations, avoiding blade detachment and enhancing longevity
- High-Performance Drilling: Our core bits for concrete features precision-ground teeth for smooth, burr-free edges and faster, accurate cuts. The tooth center aligns with the installation axis, resisting wobbling or shifting during high-speed rotation
- Wide Application: Ideal for drilling through reinforced concrete, red brick, concrete, and foam brick. This core bit is commonly used in air conditioning installations, plumbing, stair railings, highways, airports, and various constructions
- Item Model Number
- dry drill 108*240 5/8-11 internal thread
- Diameter
- 4-1/4 in/108 mm
- Inner Thread
- 5/8-11
- Max Drilling Depth
- 9-1/2 in/241 mm
- Welding Method
- Laser Welding
- Wet/Dry Application
- Dry
- Compatible Machines
- Hammer Drills, Drills
- Compatible Cutting Materials
- Reinforced Concrete, Red Bricks, Concrete ,Foam Bricks
- Net Weight (Including Accessories)
- 5.47 lb/2.48 kg
- Product Dimensions
- 10.94 x 4.25 x 4.25 in/278 x 108 x 108 mm
4-1/4 Inch Diamond Core Drill Bit for Concrete and Masonry
With a 4 1/4-inch width, the VEVOR diamond core drill bit for concrete is perfect for most drilling applications. It’s easy and quick to drill precise holes in red brick, concrete, and other masonry materials. This size is great for most home and business jobs because it provides clearance for installing plumbing, electrical conduit, or air conditioning lines.
Whether you like to do things yourself or are a professional contractor, this drill bit will help you finish jobs neatly. Anchors, bolts, or pipes will fit properly because the hole diameter remains consistent. You won’t need to spend extra time reworking or enlarging holes afterward.
9-1/2 Inch Drilling Depth for Deep Penetration
With a drilling depth of 9-1/2 inches, this core drill bit lets you reach deeper areas without making multiple passes. It’s easy to drill through thick walls, large bricks, or dense stonework. This depth is very helpful when working on commercial buildings or reinforced concrete structures.
You won’t have to switch tools in the middle of a job. With deep penetration, you can finish jobs in a single continuous pass. This drill bit is easy to use and reaches the required depth, whether you’re installing stair railings, air conditioners, or structural supports.
Diamond Core Drill Bit for Concrete with 5/8-11 Internal Thread for Easy Adapter Compatibility
You can use the VEVOR diamond core drill bit for concrete with most standard drills and hammer drills, as it has a 5/8-11 internal thread. It’s quick and easy to connect the bit; you don’t need any extra tools or complicated setups.
You can drill straight up and down, side to side, or at an angle with this internal thread design, and it will stay stable no matter what. The tight fit keeps the bit from shaking and lets you move it easily through concrete, bricks, or brickwork. You have more control over your holes now, so anchors, wires, or bolts will fit exactly where you want them to.
Includes 3 Adapters for Versatile Use
The set comes with three adapters, giving you more options. It’s easy to switch between drill types or sizes without buying extra parts. Because the setup is so versatile, you can use it for many different jobs. Adapters make it easy and quick to set up, whether you use a hammer drill, a rotary drill, or a regular power drill.
It won’t take you long to find parts that work together. The adapters ensure your bit works well with a variety of tools so that you can use it with a wider range of materials and projects. You can count on the VEVOR drill bit set to work with your tools and meet your needs, whether you’re working on a small DIY project or a big building project.
Pilot Drill for Accurate Positioning
The pilot drill that comes with the VEVOR diamond core drill bit for concrete makes it much easier to place each hole correctly. It saves time and effort on every job because you don’t have to pre-drill or mark more than one point. The pilot drill’s sharp tip quickly cuts through surfaces so you can start drilling right where you need to.
When you use the pilot drill, the core bit is less likely to move or slip at the start of the drilling job. You have better control over the whole process, even if the surface is rough or uneven. This is especially helpful when working with hard materials that require precision.
Durable Construction with 95HRB Hardness
Crafted from premium carbon steel and expertly welded, this VEVOR drill bit is 95HRB-hard, making it strong and long-lasting. It prevents heat buildup during dry or high-speed drilling, helping prevent damage to the bit or the work surface.
This toughness makes your tool last longer. You won’t have to replace or fix things as often, which will save you money and time. Heavy-duty use on reinforced concrete or tough brickwork has minimal impact on the bit’s shape or performance.
High-Performance Diamond Teeth for Smooth Cuts
There are precisely ground diamond teeth on the VEVOR diamond core drill bit for concrete. This gives you smooth, burr-free sides on every hole. Because the bit cuts straight and clean from the start, you don’t have to spend extra time finishing or grinding. During high-speed drilling, the teeth remain stable because they are carefully aligned with the bit’s center.
You can be sure that these diamond teeth will last a long time and drill through reinforced concrete, red brick, or foam blocks. With multiple uses, they stay sharp, which saves you time and effort. The design also keeps the bit from binding in the cut and overheating, so you can work quickly without having to stop to cool it down.
Wide Application for Construction and Installations
You can use this core drill bit for many different jobs. You can put it in for plumbing work, installing air conditioning, building stair railings, highways, airports, and other building jobs. We can use it in both homes and businesses because it is very flexible.
If you are a professional contractor or just like to do things yourself, this drill bit will make your job easy. You can create clean, accurate holes in a range of materials and for a variety of uses. It works well, lasts a long time, and is compatible with many other tools, so you should have it in your toolbox for heavy-duty construction or home projects.








































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