7/8 in x 23.6 in Auger Drill Bit for Wood - Deep, Precise Bores

In this review of the 7/8 in x 23.6 in auger drill bit, the bottom line is simple: it is a purpose-built bit for anyone who needs deep, clean holes in wood and similar materials without fuss. The bit's long 23.6 in length and 7/8 in (22mm) diameter make it stand out for tasks that require reaching through thick timbers, posts, or stacked boards. Our review found it particularly useful for carpenters, fence builders, and hobbyists who need a robust, easy-to-control bit that fits a 1/2 in hex chuck and performs consistently in both soft and hard wood.

Key Features

• 22mm Diameter: The 7/8 in cutting size produces neat, consistent holes suitable for dowels, bolts, and running wiring through timber.
• 600mm Total Length: The 23.6 in overall length lets users bore through thick pieces or reach recessed locations without awkward extensions.
• 1/2 in Hex Shank: The hex shank offers positive drive and quick, slip-free installation in most cordless and corded drills with a compatible chuck.
• Multi-material Compatibility: Designed to cut through hard wood, soft wood, plywood, and plastic, reducing the need to switch bits mid-project.
• DIY and Trade Friendly: Sized and shaped for common woodworking and home improvement tasks, making it practical for both professionals and weekend DIYers.

Who It's For

This auger bit is well suited to carpenters, fence installers, timber frame builders, and homeowners doing structural repairs or heavy-duty joinery who need to bore deep holes with a single tool. The long reach and robust diameter make it a good choice when working with beams, posts, and stacked lumber where short bits fail to reach.

It is less appropriate for precision cabinetry or fine joinery where smaller diameters and finer point control are required. Also, users who demand factory-sharp edges may want to plan for a quick sharpening session, as several buyers noted mixed results on initial sharpness.

Pros & Cons

Pros

• Long 23.6 in length allows drilling through thick workpieces without extensions.
• 22mm cutting diameter produces clean, consistent holes for dowels and bolts.
• 1/2 in hex shank provides secure, slip-resistant mounting in compatible chucks.
• Works across hard wood, soft wood, plywood, and plastic for versatile use.

Cons

• Some buyers reported the cutting edge needed sharpening out of the box for optimal performance.
• Its length and size make it overkill for light-duty or precision woodworking tasks.

Specifications

Our Verdict

The 7/8 in x 23.6 in auger bit is a solid value for anyone needing deep, reliable holes in timber and similar materials; its length and diameter solve reach and fit issues that standard bits cannot. While some users should expect to touch up the cutting edge for peak performance, the bit's construction, hex shank drive, and multi-material capability make it a practical addition to a tradesperson's kit or a serious DIY toolbox.

Frequently Asked Questions

Will this bit fit my cordless drill?
It fits drills that accept a 1/2 in hex shank; confirm your drill or adapter accepts hex shanks before use.

Can it cut through plastic and plywood safely?
Yes, it is designed to handle plywood and plastic as well as soft and hard wood, though feed speed should be adjusted for nonwood materials.

Does the bit come ready sharp?
Many users report good cutting performance, but several noted the edge may benefit from a quick sharpening for the best results.