1-3/8 in x 23.6 in Auger Drill Bit for Wood - Long Reach Precision

Our review of the 1-3/8 in x 23.6 in auger drill bit finds it best suited to woodworkers and DIYers who need a long, clean-cutting bit for deep holes in soft and hard wood. The most compelling reason to buy is its 23.6 in length paired with a substantial 1-3/8 in diameter, which lets users bore deep through thick boards or laminated assemblies without switching to extension shafts. In this review the bit proved reliable for timber framing, deck posts and hobby projects where a long-reach, hex-shank auger is required.

Key Features

• 35mm Diameter: The 1-3/8 in cutting diameter creates wide, consistent holes for bolts, dowels, and through-runs in a single pass.
• 23.6 in Total Length: The long 600mm length allows drilling through thick timbers and stacked boards without extensions or repeated repositioning.
• 1/2 in Hex Shank: The hex shank gives secure grip in standard chucks and quick-change adapters to reduce slippage under load.
• Material Compatibility: Designed for hard wood, soft wood, plywood and plastic, it handles a variety of shop and on-site materials.
• DIY and Workshop Use: The bit is sized and balanced for common wood working and DIY projects, offering practical versatility for builders and hobbyists.

Who It's For

This auger bit is aimed at homeowners, carpenters and hobby woodworkers who often drill deep holes in lumber, beams or stacked panels. Its long reach and large diameter are especially useful for installing long bolts, creating access holes or making running holes for pipes and wiring through wooden members.

It is not the best choice for precision cabinetry work that requires smaller diameters or for heavy masonry and metal applications; users needing very fine finish edges or a pre-sharpened cutting face may expect to do some initial sharpening.

Pros & Cons

Pros

• Large 1-3/8 in diameter lets you bore wide holes without multiple passes or reaming.
• Extra-long 23.6 in length handles thick timbers and stacked material in one go.
• Hex shank provides a secure fit in half-inch chucks and quick-change holders for minimal slippage.
• Works across hard wood, soft wood, plywood and plastic for broad workshop use.

Cons

• Several users note the cutting edge can arrive less sharp than expected and may need sharpening before first use.

Specifications

Diameter	1-3/8 in / 35mm
Total Length	23.6 in / 600mm
Shank Type	1/2 in Hex Shank
Compatible Materials	Hard wood, soft wood, plywood, plastic
Intended Use	Wood working and DIY projects

Our Verdict

The 1-3/8 in x 23.6 in auger drill bit is a strong value for builders and DIYers who need deep, wide holes in wood and similar materials. Its long length and hex shank make it practical for on-site and shop work, though buyers should be prepared to sharpen the cutting edge for optimal performance. For its size and versatility it is a practical addition to any toolkit for heavy wood drilling tasks.

Frequently Asked Questions

Will this bit fit my drill?
This bit uses a 1/2 in hex shank, so it fits drills and quick-change chucks that accept half-inch hex shanks.

Can it drill metal or masonry?
No, this auger is designed for wood, plywood and plastic; it is not suitable for metal or masonry drilling.

Does it come ready sharp?
Most users report good overall quality but some found the edge needed sharpening before heavy use, so a quick touch-up is recommended for best results.