Some common trencher blades types include:
1. Standard digging blades: These blades are the most commonly used and are suitable for general-purpose trenching in normal soil conditions.
2. Rock or frost blades: These blades are designed with extra durability and strength to handle rocky or frozen ground. They typically have reinforced edges and are made from hardened steel to withstand the impact and wear caused by rocks or frozen soil.
3. Carbide-tipped blades: These blades feature carbide inserts on the cutting edges, providing enhanced cutting performance and durability. Carbide-tipped blades are ideal for trenching in abrasive or rocky soil conditions.
4. Cup or chain cutter blades: These blades are used for cutting through tree roots or other obstructions that may be encountered during trenching. They have a unique design with cup-shaped cutting edges or chains that can effectively cut through roots without damaging the blade.