Long life patented|TUFF TOOTH design provides long blade life|Efficient cutting - optimized for specific applications|Durable construction|Shatter-resistant|Bi-metal design provides the flexibility and durability single metal blades can't|Power blast Technology increases blade life, high speed blasting along the cutting edge strengthens the blade to reduce breaks and increase durability|Long blade life and increased versatility - patented T2 technology reduces cutting forces on each tooth and optimizes chip removal to allow efficient cutting in the widest range of materials