Buy Auger Drill Bit Sets Online in Australia
Auger Drill Bit Selection — Quick Reference (Timber)
Auger drill bits are designed for DEEP hole boring in TIMBER — framing + formwork + sleepers + posts + heavy structural timbers where twist bits clog + spade bits lack depth. Selection by diameter + length + drive type + intended power tool.
| Auger Bit Type | Best For | Common Sizes |
|---|---|---|
| Standard Timber Auger | Framing + general carpentry deep-bore | 6mm – 32mm dia × 200-300mm long |
| Long Reach Auger (450mm+) | Structural + post + formwork deep holes | 10mm – 32mm dia × 450-600mm |
| Ship Auger (Single-Twist) | Heavy timber + sleeper drilling | 10mm – 32mm — extra-deep boring |
| Auger with Screw Pilot Tip | Self-feeding into timber — quick start | Drill press + cordless typical |
| Hex-Shank (1/4" Quick-Change) | Cordless drill quick-change format | Common workshop sizes |
| Square-Drive (Brace Bit) | Traditional brace + bit — manual deep boring | Vintage + restoration work |
| Multi-Auger Set (Common Sizes) | Workshop assortment — 6 to 9 bit set | Mixed sizes 6mm-25mm typical |
Workflow: Auger pulls itself into the work via centre screw tip — operator controls feed + back-out periodically to clear chips. Critical: never overload an auger in tough timber — let the bit cut at its own rate; forcing = broken bit or jammed drill. Use slow speed (200-500 RPM) for control + chip ejection. Companion: drilling, drill accessories, cordless power tools.
Auger Drill Bit Sets
Auger drill bits are designed for deep hole boring in timber — framing, formwork, sleepers, posts and heavy structural timbers where standard twist bits would clog and standard spade bits lack depth. AIMS Industrial stocks auger drill bit sets in standard timber auger configurations for use in cordless drills, drill presses and specialised long-reach auger drills.
Auger Bit Design
The key features of an auger drill bit are the lead screw (which pulls the bit into the timber and centres the hole), the spurs (which score the hole perimeter cleanly before the main cutting edges break through, essential for clean entry and exit holes in visible timber), and the deep spiral flute (which augers timber chips out of the hole continuously, preventing clog-up in deep boring). These features combine to produce clean, consistent holes in green or seasoned timber at depths a standard twist drill cannot reach.
Applications
Auger bits are the tool of choice for electrical and plumbing rough-in in timber frame construction (passing cables and pipes through top and bottom plates), drilling holes for coach screws and large bolts in structural timber connections, creating drainage holes in posts and sleepers, and boring large-diameter holes for door hardware with a swing-brace or right-angle drill drive. Standard brace-shank auger bits work in traditional braces; hex-shank augers work in modern cordless drills.
Set Contents
Auger bit sets typically cover the most common timber boring sizes — 10mm through 25mm — providing the range needed for most construction and joinery applications. For help selecting the right auger bit set for your application, contact our team. AIMS Industrial has been supporting Australian tradespeople since 1988.