For general
Fully heat-treated
Superior-grade steel
The Irwin Tools 332014- Clay Spade SDS-Max Shank, 4 X 16" is used for general garden and landscaping, not for use in concrete. The Chisel is fully heat-treated for strength and long life. The Chisel is also forged from superior-grade steel, and the working points of our chisels can be re-sharpened for longevity. .