20mm 3‑Flute Auger Bit – LT-AUG-20 | Lerin Tools

20mm 3‑Flute Auger Bit – LT-AUG-20 | Lerin Tools

The Lerin Tools 20mm 3‑Flute Auger Bit is designed for fast, clean drilling of 20mm holes in timber. A self‑feeding tip pulls the bit into the wood, while the three‑flute design clears chips quickly to reduce clogging and heat build‑up, making it ideal for drilling through studs, joists and beams on framing and decking jobs.

Sharp cutting edges and outer spurs help produce smooth holes with minimal tear‑out on entry and exit. Manufactured from hardened high‑carbon steel, the bit is built for trade use and performs reliably in softwood and hardwood when used at the correct drill speed.

Key features
20mm 3‑flute auger bit for fast, clean timber drilling

Self‑feeding threaded tip pulls the bit through wood with reduced effort

Three‑flute design for efficient chip removal and reduced clogging in deeper holes

Outer cutting edges/spurs for cleaner, low‑tear‑out holes

Hardened high‑carbon / tool steel construction for long service life

Suitable for softwood, hardwood, LVL, MDF and chipboard (within normal auger use)

Specifications
Brand: Lerin Tools

Model: LT‑AUG‑20

Type: 3‑flute wood auger bit

Diameter: 20mm

Overall length: 159mm (20×159 variant as per your variant name)

Flutes: 3‑flute design for chip evacuation

Tip: Self‑feeding threaded centre tip

Material: Hardened high‑carbon steel or similar tool steel

Shank: Hex shank for a secure grip in drill chucks (adjust to round if your design differs)

Application: Drilling 20mm holes in studs, joists, beams and posts

Typical applications
Drilling 20mm holes for cables, conduit and small pipe runs through studs and joists

Boring holes for bolts, threaded rods and fixings in framing and decking

General timber construction, renovations and fit‑off work where a 20mm hole is required

FAQs
What materials can this auger bit drill?
It is suitable for softwood, most hardwoods, LVL, plywood, MDF and chipboard. Very dense hardwoods may require slower speeds and lighter feed pressure.

What type of drill should I use?
Use a power drill or low‑speed rotary hammer (drill‑only mode) with enough torque for a 20mm auger bit. Augers work best at lower RPM to avoid burning the timber and overloading the drill.

Is it suitable for deeper holes?
Yes. The 3‑flute design improves chip evacuation. For deeper holes, withdraw the bit periodically to clear chips and prevent binding.

Can I use it in an impact driver?
If the shank is hex and your impact driver is rated for auger bits, it may be compatible, but a high‑torque drill usually provides better control and smoother drilling.