Best 11/16-Inch Concrete Drill Bits for SDS Plus Rotary Hammers
The best 11/16-inch concrete drill bit depends on the hole depth you need, your hammer’s chuck type, and whether you want a single bit or a multipack. The GRIXLEN 8.25-inch bit suits shallower drilling, while its 12.2-inch option and two-pack are better for deeper work or keeping a spare. The DEWALT bit is a compact carbide-tip choice, and the GUICGOC 14.2-inch bit offers the longest reach among these SDS Plus picks.
| Product | Length | Best For |
|---|---|---|
| GRIXLEN SDS Plus | 8.25 inches | Shallower holes |
| GRIXLEN SDS Plus | 12.2 inches | Longer reach |
| GRIXLEN two-pack | 12.2 inches | Spare bit or pair |
| GUICGOC SDS Plus | 14.2 inches | Maximum listed length |
| DEWALT DW5450 | 8 inches | Carbide tip and material removal |
GRIXLEN 8.25-Inch SDS Plus Bit
This GRIXLEN bit has an 11/16-inch (18 mm) cutting diameter, an 8.25-inch (210 mm) total length, and an SDS Plus shank. Its shorter overall length makes it a practical match for jobs that do not call for a long bit.
Best for: Buyers who need an 11/16-inch SDS Plus bit for shallower concrete drilling and prefer a compact option. It was selected because its diameter and shank type match the core requirements, while its length distinguishes it from the longer picks.
Consideration: Its 8.25-inch total length is shorter than the other long-reach options here. Check the required hole depth before choosing it.
GRIXLEN 12.2-Inch SDS Plus Bit
This single bit measures 11/16 inch (18 mm) in diameter and 12.2 inches (310 mm) in total length. It uses an SDS Plus shank, so buyers should confirm that their rotary hammer accepts that connection before ordering.
Best for: Users who need more reach than an 8-inch-class bit provides but only want one bit. It offers the same listed diameter and shank type as the shorter GRIXLEN model in a longer format.
Consideration: The stated measurement is total length; the listing does not provide a working-length figure. Do not treat the full bit length as guaranteed usable hole depth.
GRIXLEN Two-Pack 12.2-Inch Bits
This listing includes two 11/16-inch (18 mm) SDS Plus rotary hammer bits, each specified at 12.2 inches (310 mm). The two-bit format can be useful for buyers who want a spare of the same size or need more than one bit for a project.
Best for: People who want two long 11/16-inch bits rather than a single replacement. It was selected for its combination of the requested diameter, SDS Plus shank, 12.2-inch length, and multipack quantity.
Consideration: Both bits have the same listed size. Choose another option if you need different diameters or a shorter bit in the same purchase.
GUICGOC 14.2-Inch SDS Plus Bit
GUICGOC lists this bit at 11/16 inch in diameter and 14.2 inches in total length, with an SDS Plus shank. Among the selected SDS Plus products, it has the greatest stated overall length.
Best for: Buyers who need a longer bit and whose rotary hammer accepts SDS Plus bits. The longer listed length makes it a distinct alternative to the 8-inch and 12.2-inch choices.
Consideration: The supplied specifications state total length but do not give a working length. Confirm the required drilling depth and tool compatibility before purchase.
DEWALT DW5450 Carbide SDS Plus Bit
The DEWALT DW5450 is an 11/16-inch SDS Plus hammer bit with a rock carbide tip. Its listed features also include an elongated four-flute helix for faster material removal and increased steel intended to help prevent breakage. The product name specifies an 8-inch length.
Best for: Buyers who prioritize the listed carbide tip and flute design in a shorter SDS Plus bit. These features set it apart from options whose supplied descriptions focus mainly on size and length.
Consideration: At 8 inches, it is a shorter option than the 12.2- and 14.2-inch picks. Avoid it if your job requires the longer reach of those bits.
Buying Guide: Choosing an 11/16-Inch Concrete Bit
Which shank should you check?
All five picks above are SDS Plus bits. Confirm that your rotary hammer has an SDS Plus chuck before buying. A bit with a different shank style may not fit, even when its diameter is correct.
How much length do you need?
Compare the bit’s total length with the required hole depth, but do not assume those measurements are identical. A listing may report total length without specifying working length. The 8- to 8.25-inch options suit buyers comparing shorter bits; 12.2- and 14.2-inch models provide greater overall length.
Should you buy one bit or a multipack?
Choose a single bit when you need one replacement or want to minimize duplicate tools. The GRIXLEN two-pack is the listed choice for buyers seeking two matching 12.2-inch bits. Compare pack quantity and dimensions carefully before ordering.
Do bit features affect your choice?
Look at the supplied construction details alongside size. The DEWALT listing identifies a rock carbide tip and four-flute helix. Other selections are primarily distinguished by total length and quantity. Match the product description to your priorities without assuming unlisted performance or compatibility details.
Frequently Asked Questions
What does 11/16 inch equal in millimeters?
These product listings specify 11/16 inch as 18 mm. Check the exact product dimensions before ordering if the hole diameter must be precise.
Will an SDS Plus bit fit every rotary hammer?
No. The tool must accept an SDS Plus shank. Check the chuck type in your rotary hammer’s documentation.
Is total length the same as working length?
No. Total length describes the bit’s overall measurement. Working length refers to the portion intended to drill into material, and it is not listed for every product here.
Which selected bit is longest?
The GUICGOC SDS Plus bit has the greatest stated total length among these picks at 14.2 inches.
Which option comes as a two-pack?
The GRIXLEN 12.2-inch SDS Plus listing is specified as a two-pack of 11/16-inch bits.