A 13/16-inch Forstner bit is designed to bore accurate, flat-bottomed holes in wood, including holes for hinges, dowels, and counterbores. The Freud is a strong choice for buyers prioritizing a serrated cutting edge; the Fisch suits woodworking where forged high-speed steel and chip removal are key considerations. For a two-bit set, consider DECKRKAT, while NICAVKIT offers carbide-tipped construction and RURITKIT has a hex shank.
| Product | Best For | Notable Feature |
|---|---|---|
| Freud PB-0055 | Serrated-edge cutting | Forged construction |
| Fisch Black Shark | Woodworking precision | Wave-style cutting edges |
| NICAVKIT | Hardwood drilling | Carbide-tipped cutters |
| DECKRKAT 2-Piece | Keeping a spare bit | Two bits in the pack |
| RURITKIT | Hex-shank preference | 1/4-inch hex shank |
Freud PB-0055 Serrated-Edge Forstner Bit

The Freud PB-0055 is a 13/16-inch Forstner bit with a 3-1/2-inch length, a 3/8-inch shank, and right-hand rotation. Its razor-sharp serrated edge is specified for fast cutting, while its forged construction is intended for extended service life.
Best for: Woodworkers who want a serrated-edge bit with a clearly stated shank size. The listed specifications make it easier to compare with drill equipment that accepts a 3/8-inch shank.
Limitation: The product name includes “3-1/2-inch,” which refers to the listed bit length; the cutting diameter is 13/16 inch. Confirm the diameter and shank requirements before ordering.
Fisch Black Shark Forstner Bit

This Fisch bit is made from forged high-speed steel and has a sharp center point for positioning. Its wave-style cutting edges are designed to support chip removal and smooth cutting. The listed materials include wood, MDF, and plywood.
Best for: Buyers looking for a 13/16-inch woodworking bit with a center point and wave-style edge design. These features make it a relevant option for accurate hole placement and woodworking tasks where clean cutting matters.
Limitation: The supplied product details do not specify the shank diameter or drilling depth. Check those dimensions against your tool and project needs.
NICAVKIT Carbide-Tipped Forstner Bit

NICAVKIT lists tungsten-carbide-tipped cutters on a hardened steel body. The bit measures 13/16 inch in diameter, has a 5/16-inch round shank, and is listed with a drilling depth of 2-3/8 inches. Its stated applications include hard and soft wood.
Best for: Buyers who want carbide-tipped cutters and a specified drilling depth for planning a project. The round shank and listed dimensions are useful comparison points before purchase.
Limitation: The 5/16-inch shank is smaller than the 3/8-inch shank listed for some alternatives. Confirm that your chuck can hold it securely.
DECKRKAT Two-Piece Forstner Bit Set

This pack contains two 13/16-inch Forstner bits, each described as producing flat-bottomed holes. The listed 3/8-inch shank is compatible with drill presses and handheld drills, according to the product details. Suggested tasks include dowel and cup-hinge holes, overlapping holes, angled holes, partial holes, and counterbores.
Best for: Buyers who want two bits of the same size or a spare available for woodworking projects. Its stated material uses include hard and soft wood, plywood, and plastic.
Limitation: Both bits are the same diameter, so this pack does not provide a range of hole sizes.
RURITKIT Hex-Shank Forstner Bit

RURITKIT lists a 13/16-inch cutting diameter, a 1/4-inch hex shank, and a total length of 3-9/16 inches. Its ASTM 5140 steel body has center-positioned teeth and a serrated edge. The product details state that the hex shank fits drill drivers and drill presses with a 3/8-inch chuck or larger.
Best for: Buyers who prefer a hex shank and want a stated chuck-size requirement. The shank shape is also described as helping prevent the bit from slipping.
Limitation: Its 1/4-inch hex shank differs from the round shanks on several other options, so check your chuck and preferred bit-holding setup.
Buying Guide: How To Choose A 13/16-Inch Forstner Bit
What should the bit be used for?
Forstner bits are useful when a project calls for a flat-bottomed hole, a partial-depth recess, or overlapping bores. Common listed tasks include cabinet hinge installation, dowel holes, counterbores, and woodworking. Match the bit to the material: the products here list uses such as hardwood, softwood, plywood, MDF, and, for some models, plastic.
Which shank size fits your drill?
Check the shank diameter and shape before buying. The products listed here include 3/8-inch and 5/16-inch round shanks, as well as a 1/4-inch hex shank. A bit’s cutting diameter does not tell you whether its shank will fit your tool. Follow the drill or drill-press manufacturer’s chuck guidance.
Does cutting material matter?
Compare the stated construction rather than assuming all bits are alike. The Freud emphasizes a serrated edge and forged construction; Fisch lists forged high-speed steel and wave-style edges; NICAVKIT specifies carbide-tipped cutters. These details help narrow the options, but they do not replace checking the bit’s dimensions and intended materials.
How deep does the hole need to be?
Compare the project’s required depth with the listed drilling depth, where provided. NICAVKIT specifies a 2-3/8-inch drilling depth. Other product descriptions do not provide a depth figure, so consult the product listing if that measurement is important to your work.
Frequently Asked Questions
What is a 13/16-inch Forstner bit used for?
It is used to bore 13/16-inch holes, including flat-bottomed recesses and partial-depth holes in woodworking projects such as hinges, dowels, and counterbores.
Is 13/16 inch the same as 20 mm?
They are close but not identical measurements. Some listings describe a 13/16-inch bit as 20 mm or 21 mm. Check the stated diameter carefully if precise sizing is essential.
Can a Forstner bit be used in a handheld drill?
Some listed bits are described for handheld drills, but suitability depends on the tool’s chuck, the bit’s shank, and the work. Check the manufacturer’s tool guidance and secure the workpiece.
Which option includes two bits?
The DECKRKAT product is listed as a two-piece set of 13/16-inch Forstner bits. Both bits share the same stated diameter.
Why check the shank before buying?
The shank must fit the drill chuck securely. The options in this comparison have different shank sizes and shapes, so confirm compatibility rather than relying on the 13/16-inch cutting diameter alone.