Auger Drill Bits
Auger drill bits are designed for deep, clean boring through timber. Whether you’re routing pipe, cable, or fixings through joists and studs, these bits are built to pull through solid wood with precision.
Who Uses Auger Drill Bits?
These bits are a must-have for anyone working on structural wood or first fix jobs:
- Electricians – Drill out cable routes through joists and rafters.
- Plumbers – Cut deep bores for waste and copper pipe installs.
- Joiners – Fit dowels or pegs in heavy timber sections.
- Site Carpenters – Prep structural work like stud frames or floor runs.
Auger Drill Bits Are Great for Jobs Such As:
- First fix electrical cable routing
- Plumbing pipework through joists
- Drilling timber for dowel joinery
- Stud wall or roof frame bore outs
- Deep hole drilling in hardwood or softwood
How to Choose the Right Auger Drill Bit
Picking the right auger bit depends on the depth, material, and how clean you need the hole to be:
1. Length & Diameter
Longer bits are ideal for joists and deep bores. Choose a size that suits the pipe or cable diameter you’re installing.
2. Spiral Design
Twin-flute designs clear waste quickly for faster drilling. Look for precision ground edges for a cleaner finish.
3. Tip Type
Screw-point tips help self-feed the bit into timber without slipping. Ideal for overhead or awkward angle use.
Top Accessories for Auger Bits
Keep your timber drilling sharp and efficient with these add-ons:
1. Bit Extensions
Reach extra depth or access difficult routes behind battens or box sections.
2. Sharpening Stones
Maintain edge sharpness on-site to avoid snags or burning out motors.
3. Quick-Release Hex Shanks
Make swapping out bits quicker when switching from pre-drilling to driving.
Frequently Asked Questions
What’s the difference between an auger bit and a spade bit?
Auger bits drill deeper, cleaner holes in timber. Spade bits are quicker for shallow cuts but often rougher in finish.
Can auger bits go through hardwood?
Yes – look for bits with hardened cutting edges and self-feeding screw tips. Use a slower drill speed for best results.
Do I need a special drill for auger bits?
No – any drill with torque control can drive them. SDS adaptors or impact-rated hex ends help for site use.
What size should I use for pipework?
22mm–38mm bits are common for copper or waste pipe. Always size slightly over for sleeve clearance and movement.
How do I stop auger bits jamming?
Let the bit pull itself through at a steady pace. Don’t force it. Keep the flutes clean and sharp to avoid clogging.
