Virnig | Auger Bits - Tree

Virnig's Tree Auger Bits are purpose-built for planting trees in light to moderate soils, combining a robust one-piece forged steel head with precision geometry to help you set saplings quickly and accurately. Available in two extended lengths, they’re designed to keep trees steady during planting and compatible with standard power heads. Overall length and input: 48" overall length with a 2" hex collar input for reliable coupling to compatible power heads. Head construction: One-piece fabricated steel boring head for strength and durability in field use; double flighting supports faster drilling and debris clearance. Teeth and points: Factory-equipped Wisdom Gage teeth and Wisdom teeth with a Fishtail point for dependable penetration and control in varied soils; Carbide Wisdom teeth and Chisel teeth available for harder, more compact ground. Bottom geometry: Narrower bottom design to help keep trees in place and centered as you plant, improving accuracy and seedling placement. Replaceable components: Bolt-on teeth are replaceable, and standard replacement Fishtail Points are available along with heavy-duty Carbide Fishtail Points for extended life in tough soils. Model options: TAV30 (30" Tree): 48" length, 4" gage, 7 teeth, 280 lbs; TAV36 (36" Tree): 48" length, 4" gage, 9 teeth, 350 lbs. Ground condition suitability: Designed for light to moderate ground conditions; not intended for drilling through solid rock or extremely compacted soil. Shipping: In-stock items typically ship within 3–5 days; non-stock items may ship in 4–6 weeks. These tree bits are tailored for landscapers, arborists, and field crews who plant multiple trees efficiently without sacrificing placement accuracy. The combination of a durable forged head, replaceable teeth, and options for carbide and chisel configurations means you can adapt to soil variability—from loamy garden beds to compacted subsoil—without buying multiple tools. By keeping the tree more securely centered during boring, you reduce re-planting errors and save time on-site, making Virnig tree auger bits a practical choice for professional planting projects. Model Description Length (inches) Gage Teeth Wisdom Teeth Weight (lbs) TAV30 30" Tree 48 4 7 280 TAV36 36" Tree 48 4 9 350