14 best concrete core drill bits

Product description

Vortex Diamond provides standard grade high quality wet concrete diamond notched-edge segmented core drill bit with 14 inch tube length for concrete coring. It is designed for delivering the highest performance and long life at an affordable price. The notched segments provide more speed and less resistance in reinforced concrete. This core drill bit is optimized for a wide range of construction materials including concrete, masonry, paves, bricks and blocks. Fits on drills with 1-1/4 in.-7mm shank.

• Vortex Diamond standard grade notched-edge segmented core bits provide excellent performance in drilling cured concrete and asphalt.
• Segment height 0.395" (10 mm) ; Segment width. 0.145"
• 1-1/4"-7mm arbor; 14" tube length.
• Use wet only.

User questions & answers

Question:	I’m looking for the pilot bit, i have a sds max 1 1/4” x 7mm arbor with a 14” x 4” core bit what pilot bit attachment do i need
Answer:	25/32" (a little over 3/4")
Question:	Could you be more specific with an adapter for a 1/2" drill? Could you post a link to something that might work
Answer:	There are two answers to this question. It can fit on a drill with a small (1/4") chuck. The second answer is: I don't recommend it. The Dremel 85422 Silicon Carbide Grinding Stone is intended for use with the Dremel 4000 Variable Speed Rotary Tool. If you attach the grinding stone to even a very small drill you lose a great deal of the precision that the correct rotary tool gives. There is also a safety issue. If you can't control the drill properly you may shatter the stone. The Dremel 4000 costs $80.00. If you need to grind a small object safely, the extra $80.00 is worth it.
Question:	The threads are too far down in the drill to reach with a 1-1/4 7 adapter. What specific adapter works with this drill bit and a 1/2 inch drill
Answer:	It can just the same as a drill bit.
Question:	Can this be used in a 3/8" drill and does it require an arbor? Don't know what 1-1/4 in -7mm shank means
Answer:	Thank you for your question. The Dremel 85422 Grinding Stone is a 100 grit stone. For further assistance, please contact us at 1-800-4-DREMEL (1-800-437-3635), Monday - Friday, 8A - 5P CST.

Product description

Designed for drilling masonry, concrete block and brick - Pilot Bit Included - Multiple sizes available - 1-1/2" Diameter - Thread: SDS Plus - Drilling depth: 9.5" - High diamond concentration and quality guarantee longer coring life

• #30/40 diamond grit for drilling soft brick, soft masonry, concrete block
• Diameter: 1-1/2 inch - Pilot Bit Included
• SDS Plus - Rotary Mode ONLY
• Drilling depth: 9.5"
• High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended

User questions & answers

Question:	Is this good for brick and concrete block ? Putting a mini split
Answer:	Probably. I don’t have a cat but I would think it would work fine.
Question:	Is the sds plus arbour available to purchase separately ? https://www.amazon.com/gp/product/b077r6tzny/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=utf8&th
Answer:	Not the one I bought, but I suppose you could have 4 rechargeable AA batteries and use them.
Question:	Is this 3" id or od
Answer:	Hell to the yea
Question:	I need to drill a hole through brick to accommodate a 4 inch vent pipe. Will the 4 inch bit do the job, or do I need something slightly larger
Answer:	It does include the nail guard and although maybe not as powerful at the 7760 it is quieter and did the job quickly. Our beagle has anxiety and was much calmer with this dremel.

• 4-in-ONE: This CO-Z drill bit set provides a 4.4" pilot drill and three diameters of hole saws (30 mm or 1.2 in., 50 mm or 2 in., 65 mm or 2.6 in.) to let you quickly punch clean holes in the most commonly needed sizes
• FITS SDS PLUS HAMMER DRILLS: The custom shank on the connecting rod works with SDS Plus tools by all major manufacturers (Bosch, DeWalt, Hiltex, Makita, Goplus, and more) to make your hammer drill even more useful than it already was
• DURABLE MATERIALS: Made of high-quality 40Cr steel and tungsten alloy, this hole saw drill bit set will give you years of service even under punishing use
• WIDE APPLICATION: This masonry hole saw kit easily drills through most common wall materials (brick, adobe, concrete, cement, and stone) to let you install AC tubing, water pipes, exhaust hoses, and more!
• SATISFACTION GUARANTEED: We offer CO-Z's usual strong warranty and friendly 24/7 customer service so you can order worry free and start improving your home improvement right away

User questions & answers

Question:	will this adapter screw into a core bit with 5\8 thread
Answer:	No one offeres pilot bits because they would be too long and break. Make a plug out of wood to guide your core bit to get your hole started to prevent walking
Question:	Does the threads of the bit made for M22 hole saws
Answer:	You need a core drill. They are rentable. You need a water connection as well
Question:	can this be used with a hammer drill
Answer:	You need a core drill to use this core bit.
Question:	How thick of a concrete wall will it cut through
Answer:	You need a core drill to use this bit. You canning use it with a regular drill. A core drill has a water connection, a hammer action, and the mega torque needed to use this bit. And it has the threaded shank you need

Product features

PREMIUM MATERIAL FOR LONGTIME USE

Our hole saw is made of high-quality 40Cr steel to withstand even punishing use and resist corrosion.

REMOVES CHIPS AS YOU WORK

External and internal grooves cleanly remove chips during use for continuous and efficient operation.

SHARPER TEETH FASTER DRILL

Our triple-edged teeth are designed to make your drilling cleaner, faster, and more efficient.

Product description

#30/40 diamond grit, designed for drilling hard concrete, masonry, hard brick, and other hard materials - Diameter: 4 inches - Thread: 1-1/4"-7 threaded - Drilling depth: 14" - Drilling method: WET only

• #30/40 diamond grit, designed for drilling hard concrete, masonry, hard brick, and other hard materials
• Diameter: 4 inches
• Thread: 1-1/4"-7 threaded
• Drilling depth: 14"
• Drilling method: WET only

User questions & answers

Question:	Is the 1.75" outside diameter? What diameter core does it recover
Answer:	Absolutely, brick and block is what this tool is made for.
Question:	Would it drill through rebar
Answer:	I didn’t receive one with mine but the seller was great and sent one right out . I’m sorry I don’t know if you can buy separately
Question:	Can I hook this up to a grinder witha 5/8" thread
Answer:	3 in OD
Question:	Will this fit in a cordless drill
Answer:	We drilled through a 8 inch cinder block wall with this bit. We also needed a 4 inch vent pipe...in our case for a dryer. It was difficult to get a standard 4 inch vent through the hole we bored. To have it work we inserted a sleeve through the wall made from sheet metal that was probably a little smaller than 4 inches and attached a 4 inch vent pipe on the inside and an outdoor vent on the other. This solution was easy and worked out great.

Product description

Designed for drilling masonry, concrete block and brick - Pilot Bit Included - Multiple sizes available - 4" Diameter - Thread: 1/2" Shank - Drilling depth: 9.5" - High diamond concentration and quality guarantee longer coring life

• #30/40 diamond grit for drilling soft brick, soft masonry, concrete block
• Diameter: 4 inch - Pilot Bit Includedes
• Thread: 1/2" Shank
• Drilling depth: 9.5"
• High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended

User questions & answers

Question:	Will this cut through stucco? i think it's 1/2 to 3/4 inches thick. based on info i see on the questions, it appears that it will
Answer:	Although I have never tried to use this with anything but the saws that came with it I believe the threads are metric like the core bit sizes. If that is the case no it will not work on 5/8" standard threads.
Question:	Can these bits be used to go through Corian
Answer:	The mount connector size is M22 if that’s what you’re asking
Question:	Would this work for drilling a 6 inch post
Answer:	If you’re drilling into concrete yes. I highly recommend a hammer drill.
Question:	Will this work with a cordless impact drill? (DeWalt
Answer:	No idea. 65mm was used in cinder block and worked well. 30mm was used in 4" concrete and it worked pretty well. Best of lucks

Product description

#30/40 diamond grit, premium quality, designed for drilling masonry, concrete block and soft brick - Diameter: 2-1/2 inches - Thread: 5/8"-11 threaded - Drilling depth: 9.5" - High diamond concentration and quality guarantee longer coring life

• #30/40 diamond grit for drilling soft brick, soft masonry, concrete block
• Diameter: 2-1/2 inches
• Thread: 5/8"-11 threaded
• Drilling depth: 9.5"
• High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended

User questions & answers

Question:	What adapter and pilot combo would I need to use this bit with my Bosch hammer drill
Answer:	Yes, all core bits are measured by outside diameter. The inner is about 1/4" smaller, but that's not something we control for in manufacturing
Question:	Have dewalt spline hammer drill & a sds adapter for small bits & hd milwaukee right angle drill which to use for 8" concrete
Answer:	Yes it can. However, if you have a lot of rebar to go through, this series of core bits will perform better: https://www.amazon.com/dp/B078ZQTB23
Question:	Need a 2 1/2 hole in street curb for drainage pipe, curb 6 - 6 1/2 inches thick, have Dewalt dwe4011 angle grinder w/ 5/8"-11 spindle, will this do it
Answer:	Hi, you technically Can hook this up to a grinder with a 5/8" thread, but the RPM of a grinder is typically too high to operate a wet core bit efficiently. The recommend rpm for 1.5" diameter wet bit is around 2000
Question:	I have an sds max bulldog drill. What adapter do I need for this Bit
Answer:	I dont see why not, im sure the Hulk could hold it in place, the drill made for this weighs 75lbs plus.

Product description

Outside Bit Diameter: 2.5" Overall Length: 17" Approximate Inside Barrel Depth: 14.5" Approximate Thread Type: Industry Standard 1 1/4" (Directly fits our BLUEROCK Z-1 Core Drills) Note to buyers: Concrete coring bits are considered a consumable part. Bit life varies based on many factors including; material type, material density, depth of cut, hole diameter, drilling speed, wet/dry drilling and operator experience. As such, it is extremely difficult for BLUEROCK Tools to assess individual projects and speak to how long a bit will last before it needs to be replaced. We consider these core bits to be mid-grade in their performance but sold at a low-grade price point. Our customers tend to consider these bits to be a better value compared to high-grade bits that are a lot more expensive. We often hear that even though high-grade bits may last twice as long, they cost four times the price and they are happy buying our bits and getting the same amount of feet cut for half the price. Wet type concrete coring bits are NOT designed to cut all types of rock. They are primarily designed to cut concrete. Certain types of rock can be cut, but it will limit the bit life. The decision to use these bits on materials that they are not primarily designed for will be done at the risk of the user and not covered under our standard business policy.

• BLUEROCK BRAND
• 2.5" MAX Cutting Diameter
• 1-1/4" Threads
• 17" Overall Length
• 14.5" Inside Depth

Product description

Bosch SDS-max carbide-tipped rotary hammer core bits offer an integral shank for better power transmission. Bosch SDS-max rotary hammer core bits with wave design go beyond the range of standard bits and allow smaller hammers to drill larger holes. Wave design transfers energy to bit more effectively for up to 40 percent faster drilling versus previous design. Only for use with SDS-Max rotary hammers.

Bosch HC8555 core bits with wave design go beyond the range of standard bits and allow smaller hammers to drill larger holes. Bosch SDS-Max rotary hammer core bits are carbide tipped with an integral shank for better power transmission. Maximum core size is 2-5/8-inch deep.

• EFFICIENT: The Bosch SDS-max carbide-tipped rotary hammer core bit features an effective wave design to transfer energy for up to 40 percent speedier drilling versus other bit designs.
• POWER: With an integral shank, the HC8555 offers better power transmission and is designed to allow smaller hammers to drill larger holes.
• VERSATILE: This core bit is versatile in application with materials including concrete, brick, and block.
• DIMENSIONS: The Bosch HC8555 SDS-max core cutter measures 4-inches in diameter. The useable length is 17-inches and the overall length is 22-inches.
• Only for use with SDS-max rotary hammers
• The bit diameter is 4 inches, and the shank diameter is 0.71 inches.

User questions & answers

Question:	Can i use this bit on makita rotary hammer drill
Answer:	It sure will I cut through 17 1/2 inches of cement and rebar, no problem just took time!!
Question:	Can you get 4" vent pipe through the hole without chipping it out
Answer:	We do not recommend these for Corian. You can use a dedicated granite drilling bit for that.
Question:	Is this a wet or dry bit
Answer:	Maybe if you bought a 6” core saw but this I bought is a 4”.
Question:	I need to drill a 3.5" hole in a concrete slab. which is easier, an sds max core bit, or a diamond wet core bit? what's the difference
Answer:	Yes, if it's NOT set to impact. It works as a regular drill bit. Use water if you want a faster, cleaner cut with less wear on the bit.

Product features

Concrete to the Core

After more than 80 years of developing innovative tools and accessories for the concrete professional, Bosch is the acknowledged leader in the industry. With a robust line that can address everything from the toughest concrete drilling jobs to material removal, Bosch is a company whose legacy is written in concrete.

Concrete Innovation

Bosch offers a full line of professional-grade concrete drilling and cutting accessories designed to get the job done right.

All-In-One Design

Delivers clean accurate holes with efficient transfer of power.

Engineered for Performance

Bosch core bits feature asymmetrical carbide teeth and a wave design providing long life and fast performance.

Core Bit Accessories

Bosch core bits include a carbide tipped centering bit with a retaining ring and pin.

HC88 - Carbide Centering Bit

HCRR001 - Rubber Ring and Pin

Product description

NEW - 1" - 6" BLUEROCK TOOLS DIAMOND WET CORING BIT FOR CORE DRILL - NEW Up for sale is a set of 1", 2", 3", 4", 5", and 6". WET coring bits for core drilling. Overall Length: 17" Approximate Inside Barrel Depth: 14.5" Approximate Thread Type: Industry Standard 1 1/4" (Directly fits our BLUEROCK Z-1 Core Drills) Note to buyers: Concrete coring bits are considered a consumable part. Bit life varies based on many factors including; material type, material density, depth of cut, hole diameter, drilling speed, wet/dry drilling and operator experience. As such, it is extremely difficult for BLUEROCK Tools to assess individual projects and speak to how long a bit will last before it needs to be replaced. We consider these core bits to be mid-grade in their performance but sold at a low-grade price point. Our customers tend to consider these bits to be a better value compared to high-grade bits that are a lot more expensive. We often hear that even though high-grade bits may last twice as long, they cost four times the price and they are happy buying our bits and getting the same amount of feet cut for half the price. Wet type concrete coring bits are NOT designed to cut all types of rock. They are primarily designed to cut concrete. Certain types of rock can be cut, but it will limit the bit life. The decision to use these bits on materials that they are not primarily designed for will be done at the risk of the user and not covered under our standard business policy.

• 1"-6" Core Bit Set
• BLUEROCKÊTools Brand
• Wet Type Core Bits
• For Concrete Coring

User questions & answers

Question:	Does it cut metal
Answer:	I have drilled thousands of holes, 3" dia with a drill like this using a 6" angle grinder, cuts like butter even at a angle. I started out using sds impact drill and then regular 1/2" drill but the grinder is far far faster
Question:	Does this work for a Hilti core drill
Answer:	this one should work.....https://www.amazon.com/Core-Drill-Adapter-Male-Drilling/dp/B01F4IQS76/ref=sr_1_1?s=hi&ie=UTF8&qid=1544234703&sr=1-1&keywords=sds+max+adapter+for+core+bits there are several to chose from on amazon just search for SDS MAX adapter for core bit

Product description

Steel Dragon Tools 6in. (152 mm) Wet Diamond Concrete Core Drill Bit

Steel Dragon Tools® 6 in. (152 mm) wet diamond laser-welded masonry core drill bit. For use wet drilling asphalt, block, brick, concrete, pavement, and other materials. Wet drilling only.

• Bit Size: 6 in. (152 mm)
• Drilling Depth: 14 in.
• Spindle Thread: 1-1/4 in. – 7
• For use on asphalt, block, brick, concrete, pavement, and other materials.
• Wet drilling only.
• 10 mm laser-welded split segments for improved operating life.
• Fits Hilti® and Milwaukee® drill rigs.
• Overall Height: 16-1/2 in.

• Bit Size: 6 in. (152 mm)
• Drilling Depth: 14 in.
• Spindle Thread: 1-1/4 in. - 7
• For use on asphalt, block, brick, concrete, pavement, and other materials.
• Wet drilling only.

User questions & answers

Question:	where this machine made
Answer:	Thank you for your question. The HC8555 Core Bit is use for dry type of drilling into concrete and masonry. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.
Question:	Will this cut through rebar/wire mesh? And if so what size
Answer:	Typically for a slab you would use the diamond core bit. The SDS max is for use with a large hammer drill. The diamond bit is for use with a core drill.
Question:	Will this cut through granite
Answer:	You'll need a SDS adapter. There's no pilot. I'd suggest cutting a hole in some plywood equal to the size of the bit making it long enough to get both feet on to hold in place. Once it starts cutting the concrete it'll follow grove it cut.
Question:	What adapters can I use to install this to a bosh hammer drill
Answer:	I ran it on a Dewalt 1/2” angle drill at low speed. If possible use a little water, keep it good and straight.

Product description

NEW - 8" BLUEROCK TOOLS DIAMOND WET CORING BIT FOR CORE DRILL Outside Bit Diameter: 8" Overall Length: 17" Approximate Inside Barrel Depth: 14.5" Approximate Thread Type: Industry Standard 1 1/4" (Directly fits our BLUEROCK Z-1 Core Drills) Note to buyers

• 8" Wet Type Core Bit
• BLUEROCK Tools Brand
• 1-1/4" Female Threads

User questions & answers

Question:	what size wrench does it take to tighten and loosen the bit
Answer:	This bit set has a 1-1/4" threaded end. Bluerock Tools sell various adapters compatible with Hilti drills. BI+, DD-BL, DD-BU.
Question:	Is this compatible with a Milwaukee hammer drill
Answer:	Hi! The HC8555 SDS Max Core Bit is compatible with SDS Max type of Rotary Hammers. We recommend getting in touch with Makita to confirm compatibility. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.
Question:	does a core bit cut through rebar
Answer:	No you cannot. 4" is the outside diameter of the core bit and the inside diameter of the pipe. If the 4" pipe that you speak of is schedule 40 the outside diameter is 4.5" as the thickness of the pipe is 1/4" thick

Product features

1" - 4" BLUEROCK TOOLS DIAMOND WET CORING BIT FOR CORE DRILL​

Up for sale is a set of 1", 2", 3" & 4" BLUEROCK Tools brand WET coring bits for core drilling. These are brand new "wet" type concrete coring bits made to be used with water.  They all use the standard 1-1/4" threads used by most concrete core drills. The overall length is around 17". They're designed to drill through reinforced concrete, masonry, assorted brick and block as well as other types of rock. These are high quality bits that are made to last.

Product description

Steel Dragon Tools 10" (250 mm) Wet Diamond Concrete Core Drill Bit

Steel Dragon Tools® 10 in. (250 mm) wet diamond laser-welded masonry core drill bit. For use wet drilling asphalt, block, brick, concrete, pavement, and other materials. Wet drilling only.

• Bit Size: 10 in. (250 mm)
• Drilling Depth: 14 in.
• Spindle Thread: 1-1/4 in. – 7
• For use on asphalt, block, brick, concrete, pavement, and other materials.
• Wet drilling only.
• 10 mm laser-welded split segments for improved operating life.
• Fits Hilti® and Milwaukee® drill rigs.
• Overall Height: 16-1/2 in.

• Bit Size: 10 in. (250 mm)
• Drilling Depth: 14 in.
• Spindle Thread: 1-1/4 in. - 7
• For use on asphalt, block, brick, concrete, pavement, and other materials.
• Wet drilling only.

• 1-3/8"(35mm) Laser Welded Diamond Dry Drilling Core Bits.
• Diameter:35mm(1-3/8 inch), Total length: 100mm, Thread: 5/8"-11.
• Dry or Wet Drilling - use wet will greatly prolong the segment life
• Designed for drilling hard granite, marble, engineering stone, concrete, brick
• Easily operate on Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank

User questions & answers

Question:	Is this bit intended to be used at a slow or fast drill speed
Answer:	I used this bit to core through a 5 inch concrete slab with wire mesh, 3/8 rebar and metal floor decking, with no problem. Took approx. 15-20 minutes per hole FYI don't force the bit.
Question:	Could you use this for drill through boulders
Answer:	Thank you for contacting us! These bits are made for Reinforced Concrete, Asphalt, Block, Pavement, Brick etc. They will not work or granite, tile, glass or any of those applications. Please let us know if there is anything else that we can assist you with today!
Question:	Necesito una broca de marmol
Answer:	I am not familiar with a bosh hammer drill. You can use any adapter that has a 1/4" x 7 thread size as that is what is on the drill bit.
Question:	can this go through metal
Answer:	Yes it cut rebar in concrete

Product features

Application and Notice

1. Drilling hard granite, marble, engineering stone, concrete, brick,masonry and all similar materials
2. Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities
3. Dry or Wet Drilling - use wet will greatly prolong the segment life

Which Machine?

1. With 5/8-Inch-11 Thread; Easily operate on Angle Grinder
2. If you fit them on drill or other machine, you need an adapter, such as SDS, hex, Round plus shank...

Notice:

1. Do not use this bit in hammer or Impact mode
2. Do not give too much pressure or sway the core bits when working
3. If find hard to drill, take a break and check the segments.
4. If the segment become blunt, please try to sharp it by drilling a hole on the abrasive concrete and then continue to drill the hard material.

Step 1

• Fix it on angle grinder tightly and rightly.
• Turn on the angle grinder and let the core bits rotating in the air to check if there is balance problem

Step 2

• Hold the machine very steadily and give gentle pressure
• Start drilling as per following instructions
• 1) place the drill at a 30 degree angle, it will help to position
• 2) Drilling the material till the hole start to form

Step 3

• 3) Bring the drill up into upright position slowly then keep drilling vertically.
• Do not give too much pressure or sway the core bits when working