To drill a 3-inch hole in concrete, choose a 3-inch diamond core bit or a concrete-rated core bit that matches your drill’s connection and wet-or-dry requirements. The SALI 5/8-11 bit suits compatible setups that need a 10-inch depth; its wet 1-1/4-7 counterpart is designed for wet drilling and reaches 15 inches. The SDS Plus options are better for users with compatible SDS Plus tools. One listed hole saw is for wood and similar materials, not concrete, so it is included as a cautionary comparison.
| Product | Best suited for | Key detail |
|---|---|---|
| SALI 5/8-11 diamond core bit | Compatible core-drill setups | 10-inch depth; adapters included |
| SALI wet diamond core bit | Wet core drilling | 15-inch depth; wet use only |
| DKIBBITH SDS Plus core bit | Users with SDS Plus tools | Positioning drills included |
| Rannb SDS Plus hole saw | Concrete and masonry drilling | 75 mm cutting diameter |
| ELECFUN bi-metal hole saw | Wood, drywall, and plastic | Not listed for concrete |
SALI 3-Inch Diamond Core Bit, 5/8-11
This diamond core bit has a 3-inch diameter, a stated 10-inch inside-barrel drilling depth, and an industry-standard 5/8-11 thread. Its listed applications include cured concrete, brick, block, masonry, reinforced material, asphalt, and rock. The package also includes a 1/2-inch hex-shank adapter and a 5/8-11-to-SDS Plus adapter.
Best for: Buyers whose drill setup accepts the threaded bit directly or can use one of the included adapters. It was selected because it is explicitly designed for concrete and has a clearly stated depth. Check first: Confirm the drill and adapter connection match your equipment; the listing does not establish that every drill is suitable for this bit.
SALI Wet 3-Inch Diamond Core Bit
This 3-inch wet diamond core bit has a stated 15-inch drilling depth and a 1-1/4-7 thread. The manufacturer lists concrete, reinforced concrete, brick, block, asphalt, marble, rock, and stone among its intended materials. Its instructions specify wet use only and recommend beginning vertically.
Best for: Buyers who need a deeper core and have a compatible 1-1/4-7 setup with water available. It stands out for its longer stated depth and explicit wet-only guidance. Limitation: Do not choose it for a dry-drilling task; the product information says it can be used wet only. Verify thread compatibility before buying.
DKIBBITH 3-Inch SDS Plus Concrete Core Bit
This 75 mm tungsten-steel core bit comes with a 220 mm SDS Plus connecting rod and two 110 mm center-positioning drill bits. Its listed materials include brick, stone, cinder block, fiber cement siding, backer board, stucco, and other wall materials. The listing describes high-frequency welding and installations such as air-conditioning units, exhaust systems, and sewer pipelines.
Best for: Users who already have a compatible SDS Plus tool and want positioning accessories included. The SDS Plus connection and center drills make the kit a distinct option among the listed products. Check first: Its listed diameter is 75 mm, rather than exactly 76.2 mm (3 inches), and the product details do not specify a drilling depth.
Rannb 75 mm SDS Plus Concrete Hole Saw
This steel-alloy hole saw has a listed 75 mm drilling diameter and an SDS Plus shank. The product description identifies concrete, brick, cement, stone, and walls as intended materials, and states that the material offers hardness, wear resistance, and heat resistance. It also describes a shank and male-thread-adapter design intended to fit the drill chuck more tightly.
Best for: Buyers seeking a concrete-rated bit with an SDS Plus connection for a roughly 3-inch opening. It was selected because its listed materials directly include concrete and masonry. Check first: The diameter is 75 mm, not precisely 3 inches, and the listing advises checking its size illustration for additional dimensions.
ELECFUN 3-Inch Bi-Metal Hole Saw
This 3-inch bi-metal hole saw is listed for wood, drywall, plastic pipe, and similar materials, with a circular carbide arbor. Best for: Buyers who need a large opening in those listed materials, not in concrete. It is included to clarify an important product distinction in the search results. Avoid this if: Your target is concrete; the provided product details do not list concrete or masonry as compatible materials.
Buying Guide: Choosing A Concrete Hole-Cutting Bit
Does the bit match your drill connection?
Check the connection type before choosing by diameter. The SALI options use threaded connections, with different thread sizes; the DKIBBITH and Rannb products are listed with SDS Plus shanks. An adapter is not a substitute for confirming that your drill and setup are appropriate for the bit.
Do you need wet or dry drilling?
The SALI 1-1/4-7 model is explicitly for wet use only. The other product descriptions provided do not clearly specify a wet-or-dry method, so check the full manufacturer instructions before use. Do not assume a bit is suitable for dry drilling just because the listing does not mention water.
Is the diameter exactly three inches?
Three inches equals 76.2 mm. The SALI 5/8-11 product lists 3 inches, while the SDS Plus and wet SALI listings give 75 or 77 mm. If the opening must meet a precise measurement, compare the listed cutting diameter with the required finished hole size.
How much drilling depth is required?
Compare the stated bit depth with the wall or material thickness. The SALI threaded options list 10 inches and 15 inches, respectively. The DKIBBITH and Rannb descriptions provided do not state a drilling depth, so confirm that detail before purchase.
Frequently Asked Questions
Can I use a regular wood hole saw on concrete?
No. The ELECFUN listing names wood, drywall, and plastic, not concrete. Choose a bit specifically listed for concrete or masonry.
What size is a 3-inch concrete core bit in millimeters?
Three inches is 76.2 mm. A 75 mm bit is slightly smaller, so check whether that difference is acceptable for the opening.
Which listed bit has the greatest stated depth?
The SALI wet diamond core bit lists a 15-inch drilling depth. Its product information says wet use only.
Are all SDS Plus bits interchangeable with every drill?
The listings describe SDS Plus connections, but buyers should verify their tool’s connection and the manufacturer’s requirements before use.