Four Sizes for Your Next Woodworking Project
Tackle wood-drilling tasks with four long-shank auger bits in one set. Each bit combines a threaded pilot tip, spiral cutting flutes, and a built-in hex shank. Includes 18, 20, 22, and 25 mm diameters, one of each.
Self-Feeding Threaded Tip & Spiral Cutting Design
The threaded pilot tip helps guide the bit into the wood as it rotates. Spiral flutes help move chips away from the cutting area, while the long-shank design provides reach for your woodworking projects.
Built-In 1/4-Inch Hex Shanks
Each of the four bits has its own 1/4 in (6.35 mm) hex shank. No separate adapters are included or needed to form the shank. Check that your drill chuck accepts this interface and that your tool supports the selected bit diameter and material.
Four Diameters, One Complete Set
Each set includes one bit in each size below. The diameters are metric; inch equivalents are approximate and are not exact fractional-inch drill sizes.
18 mm Bit (Approx. 0.71 in)
Overall length:
6.54 in (166 mm)
Listed working depth:
5.00 in (127 mm)
Shank length:
1.10 in (28 mm)
20 mm Bit (Approx. 0.79 in)
Overall length:
6.61 in (168 mm)
Listed working depth:
4.96 in (126 mm)
Shank length:
1.10 in (28 mm)
22 mm Bit (Approx. 0.87 in)
Overall length:
6.61 in (168 mm)
Listed working depth:
4.96 in (126 mm)
Shank length:
1.10 in (28 mm)
25 mm Bit (Approx. 0.98 in)
Overall length:
6.57 in (167 mm)
Listed working depth:
4.96 in (126 mm)
Shank length:
1.10 in (28 mm)
Dimensions and working depths are approximate manufacturer specifications. Usable depth depends on the setup, workpiece, and chip clearance.
Specifications & Package Contents
| 4 wood auger drill bits: 18, 20, 22, and 25 mm; one of each size |
| Built-in hex shank, 1/4 in (6.35 mm) |
| Approx. 1.10 in (28 mm) on all four bits |
| Approx. 12.40 oz (351.4 g), excluding packaging |
| Drilling wood |
| Power drill, separate adapters, and other accessories shown for demonstration |
Power Tool & Material Compatibility
Match the bit to your project and check the operating instructions for your drill. Tool suitability depends on the chuck, drilling capacity, and operating settings, rather than battery voltage alone.
Power Tool Compatibility
Check your tool's drilling capacity before use. A matching shank does not guarantee that the tool is suitable for every bit size.
- Cordless Drills: Confirm that the chuck accepts a 1/4 in (6.35 mm) hex shank and that the drill supports the selected hole diameter in wood.
- Corded Drills: Follow the tool manufacturer's capacity and operating instructions.
- Drill Presses: Confirm chuck compatibility, workpiece clearance, and the permitted bit size before use.
Woodworking Applications
Designed for drilling wood. Check suitability for your specific workpiece before starting.
- Softwood projects
- Hardwood projects, subject to tool capacity and wood density
- For plywood, MDF, or particleboard, confirm suitability and test on a spare piece first
Materials to Avoid
Do not use this wood auger set on:
- Concrete & masonry
- Metals, including steel, iron & aluminum
- Ceramics & tiles
- Glass
For plastics, confirm suitability with the manufacturer first.
Secure the workpiece and follow the tool manufacturer's instructions. A matching hex interface alone does not confirm compatibility with impact drivers or impact wrenches.
Frequently Asked Questions
What is included in the set?
Four complete wood auger bits: 18, 20, 22, and 25 mm, one of each size. Each bit has a built-in hex shank. A power drill and separate adapters are not included.
Will these bits fit my drill?
Each bit has a 1/4 in (6.35 mm) hex shank. Check your drill's chuck compatibility and drilling capacity for the selected diameter. A matching shank alone does not confirm impact-driver or impact-wrench compatibility.
What materials can I drill?
These auger bits are intended for wood. Check suitability for your specific wood or board. Do not use them on metal, concrete, masonry, tile, or glass. Confirm suitability with the manufacturer before use on plastics.