What material are auger teeth typically made of?

• A. Tungsten faced forged steel teeth
• B. Brass
• C. Plastic teeth
• D. Aluminum teeth

Answer: (A)

Auger teeth must withstand heavy abrasion and impact as you drill through soil, rock, and roots, so they’re made from a hard, tough combination. A forged steel core with a tungsten carbide facing provides the best balance: the tungsten carbide edge resists wear and stays sharp longer in abrasive conditions, while the steel core adds toughness to absorb impacts and prevent cracking. This combination keeps the cutting edge effective over more hours of use and across tougher materials.

Brass, plastic, and aluminum teeth would wear out quickly, deform, or break under drilling loads, especially in rocky or compacted soils. They don’t offer the necessary hardness or strength, which is why they aren’t used for typical auger teeth.