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VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete

VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete
$50.99
50.99
Price including VATSee details

4.25 inch

  • 4.25 inch
  • 2.5 inch
  • 3.5 inch
  • 2 inch
  • 4 inch
  • 1.5 inch
  • 3 inch
  • · Efficient & Smooth Drilling: This diamond core drill comprises premium aluminum alloy components, and high-quality diamond grits ensure a longer coring life. Diameter: 4.25 in / 108 mm, Drilling Depth: 9.5"/241.3 mm. A pilot bit and an extra 4.5"/114.3 mm blade is included to increase your efficiency.
  • · Engineered for Exact Fitting: With a 5/8"-11 universal thread, this core drill bit allows easy and rapid assembling to a standard fixed core or handheld drilling machine. It is compatible with most concrete core drill devices.
  • · Humanized Structure: Our diamond dry coring bit features chip removal holes, highly regular sawteeth, and concentric axes design. The innovative construction provides high drilling performance while keeping a long lifetime.
  • · Simple Operation: The core drill can be used to contain your multiple work needs for both dry and wet. Start drilling at the vertical position, then continue to dig deep, and you will get a perfect hole in a second.
  • · Versatile Applications: Our concrete core drill is fabulous for drilling hard concrete, masonry, hard brick, and other hard materials. It is widely used in installing air conditioners, pipes, stair railings, highways, airports, and other conditions.
 

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VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete
4.25 inch
VEVOR Core Drill Diamond Dry Coring Bit 4.25
VEVOR Core Drill Diamond Dry Coring Bit 4.25
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Dry Drill Core Bit
Premium Diamond & Complete Kit & Elaborate Clearance Holes
  • This professional diamond core bit with a pilot bit and a saw blade is high-frequency welded, providing a rapid and clean drill. 5/8"-11 general thread is ideal for diversified machines applied to hard concrete and brick.
  • Efficient & Smooth Cutting
  • Engineered For Exact Fitting
  • Humanized Structure
  • Simple Operation

VEVOR Core Drill Diamond Dry Coring Bit 4.25
Tough Equipment & Tools, Pay Less
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Tough Equipment & Tools, Pay Less
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Premium Diamond Grit
The core bore drill is elaborate aluminum alloy, selected diamond teeth, and high-frequency welding technology, providing steady and rustproof.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
5/8"-11 Universal Thread
Our diamond core drill is suitable for most types of machines in the market. You can install the drill on your previous machine effortlessly.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Quick Chip Removal Hole
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.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Flawless Kit
Our handheld core drill comes with a core bore drill, a pilot bit, and a hot-pressed corrugated saw blade, well-designed to furnish you with maximum convenience.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
High-frequency Teeth Welding
High-frequency welding has firm, sharp, and wear-resisting properties, the heat evenly technique without missing welding.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Extensive Uses
The core drill reducer is paramount to your projects, widespread used in installing air conditioning, range hood, sewer, and engineering coring.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Specifications
  • Model: COREDRILL4.25IN
  • Material: Diamond & Aluminum Alloy
  • Bit Diameter: 4.25 in / 108 mm
  • Bit Depth: 9.5 in / 241.3 mm
  • Thread: 5/8 in - 11
  • Net Weight: 5.9 lbs / 2.7 kg
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Package Content
  • 1 x Diamond Core Drill Bit
  • 1 x Pilot Bit
  • 1 x Blade
VEVOR Core Drill Diamond Dry Coring Bit 4.25
VEVOR Core Drill Diamond Dry Coring Bit 4.25

VEVOR Core Drill Diamond Dry Coring Bit 4.25
Tough Equipment & Tools, Pay Less
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Tough Equipment & Tools, Pay Less
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Dry Drill Core Bit
Premium Diamond & Complete Kit & Elaborate Clearance Holes
  • This professional diamond core bit with a pilot bit and a saw blade is high-frequency welded, providing a rapid and clean drill. 5/8"-11 general thread is ideal for diversified machines applied to hard concrete and brick.
  • Efficient & Smooth Cutting
  • Engineered For Exact Fitting
  • Humanized Structure
  • Simple Operation
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Premium Diamond Grit
The core bore drill is elaborate aluminum alloy, selected diamond teeth, and high-frequency welding technology, providing steady and rustproof.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
5/8"-11 Universal Thread
Our diamond core drill is suitable for most types of machines in the market. You can install the drill on your previous machine effortlessly.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Quick Chip Removal Hole
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.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Flawless Kit
Our handheld core drill comes with a core bore drill, a pilot bit, and a hot-pressed corrugated saw blade, well-designed to furnish you with maximum convenience.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
High-frequency Teeth Welding
High-frequency welding has firm, sharp, and wear-resisting properties, the heat evenly technique without missing welding.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Extensive Uses
The core drill reducer is paramount to your projects, widespread used in installing air conditioning, range hood, sewer, and engineering coring.
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Package Content
  • 1 x Diamond Core Drill Bit
  • 1 x Pilot Bit
  • 1 x Blade
VEVOR Core Drill Diamond Dry Coring Bit 4.25
Specifications
  • Model: COREDRILL4.25IN
  • Material: Diamond & Aluminum Alloy
  • Bit Diameter: 4.25 in / 108 mm
  • Bit Depth: 9.5 in / 241.3 mm
  • Thread: 5/8 in - 11
  • Net Weight: 5.9 lbs / 2.7 kg

Specification

Model
COREDRILL4.25IN
Material
Diamond & Aluminum Alloy
Bit Diameter
4.25 in / 108 mm
Bit Depth
9.5 in / 241.3 mm
Thread
5/8 in - 11
Net Weight
5.9 lbs / 2.7 kg
Questions and Answers
Typical questions asked about products: Is the product durable? ...

Customer Reviews

  • 4.8
  • 4.6
  • 4.6
  • 4.7
TURBO TURBO
7 20 / 27 / 35 / 55 / 68 mm 4.25 inch
OWNER ARTURO DESIGNS DISTINCTVE WELDING
GREAT BANG FOR THE PRICE. GREAT QUALITY. EASY TO HOOK UP. EASY TO USE. I INSTALL EXTERIOR METAL RAILINGS. INSTALL 2" PIPE TO CONCRETE. CORE HOLE FOR INSTALLATION OF PIPE.
0
Ronisha cuffy Ronisha cuffy
7 20 / 27 / 35 / 55 / 68 mm
Great
0
Tom Tom
10 6 / 8 / 10 / 13 / 19 / 25 / 32 / 51 mm 3.5 inch
Tom
Performed well through 8" of solid concrete. Tracked solid, even with a hand drill. Would buy again and the price was great which also included the bit and cutting wheel.
0
VEVOR Customer VEVOR Customer
10 6 / 8 / 10 / 13 / 19 / 25 / 32 / 51 mm 4.25 inch
No blade
No cutting blade was included in this set like the description says, the bits so far are performing well on quartz but haven't tried them on granite countertops yet...
0
Did the job. Did the job.
10 6 / 8 / 10 / 13 / 19 / 25 / 32 / 51 mm 1.5 inch
7" of hard concrete wall
I'm giving it 5 stars because it did exactly what I bought it for. The price was great! The pilot bit was the weak point as it didn't really keep the core drill centered to start the hole. It wobbled all over due to its length. I was able to chisel a starting ring and from there the core drill did its job. It even cut through the rebar that I unluckily encountered. You have to be patient and take frequent breaks to allow the core drill bit to cool. This is required with all dry core drilling.
VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete
0
Daniel Colon Daniel Colon
10 6 / 8 / 10 / 13 / 19 / 25 / 32 / 51 mm 2.5 inch
The quality of the product
Perfect for what I have to on my projectI love it, It really with it for the money I paid for it lo
0
Jay VA Jay VA
10 6 / 8 / 10 / 13 / 19 / 25 / 32 / 51 mm 3 inch
Great cutting though brick but not so great pilot bit
This bit worked really well once it gets started correctly and is kept wet with a constant stream of water, but that’s a given when drilling stone, block, brick, or other forms of masonry. I drilled though red brick and the concrete block just behind it in about 10 minutes. But the pilot bit is terrible. The way that the arbor at the top of the drill tube is machined causes the pilot bit to be very lopsided. I fixed this by two different methods. The first, I put some tough wire around the pilot bit at the edge of the tube (see the picture) and I centered the pilot bit by using three pieces of wire one attached to every other tooth on the tube, I tightened the wire with lineman pliers. That worked ok as the wire would break away once the drill tube started into the block but before the pilot bit would go off to one side. But then for another job I improved on my design and drilled a three inch hole with wood hole drill into a piece of one inch wood. I sanded down the edges a bit so it would fit the tube loosely. I then placed this cutout, with a little black tape wrapped around it to make it snug, into the very front of the tube (see the other picture). This worked extremely well, as the drill tube went into the block, the wood cutout traveled up the drill tube. But once I got about three quarters or an inch into the tube I removed the wood cutout and the pilot bit since neither were necessary any longer. The bit sailed through the brick and concrete block. Perhaps the manufacturer could make a design change and have an insert that would keep the pilot bit centered but also ride up the tube as you bore the hole. All in all, this a good product for the money. Just remember to have someone help you and keep spraying water right onto the front of the bit and into the hole you are drilling. No matter what, never drill masonry dry, your bits will last much longer if you keep them cool and wet.
0
Jim Jim
Boss
Good price, quick delivery, product working fine. What more do you expect me to say??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
0
M. Ruse M. Ruse
7 20 / 27 / 35 / 55 / 68 mm 4.25 inch
did the job
drilled through concrete block
0
Oldtimer Oldtimer
10 6 / 8 / 10 / 13 / 19 / 25 / 32 / 51 mm 2.5 inch
Wet bored 9 in. of concrete basement wall with an old drill.
Although I only have an old hammer drill (Hammer off) I drilled it wet. I first hammer-drilled a small hole through the wall and then ran an evaporative cooler water supply line into the inside of the basement. I inserted it inside the small hole and stuffed some foam insulation around it so that water would come out into the center of the coring bit. I then mounted a piece of particle board with a 4-in hole in it to guide the bit. It worked really well! I am 70 years old and I was drilling the hole in a very awkward position but I'm quite happy with the way it turned out. I know that the bit teeth were wearing down, as they are supposed to, because I occasionally saw a sparkle of diamond dust in the water that came out. That coring bit is tough and it has several holes left in it!
VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete VEVOR Core Drill Diamond Dry Coring Bit 4.25" with Pilot Bit for Hard Concrete
0

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