A. Yes. Our tines are manufactured using high carbon alloy and Spring Steels then are Heat treated to between 46-52 HRC depending upon their intended application. Deep tines may be between 46-49 HRC and Greens tines 49-52 HRC, Scarifying blades treated to around 59-50 HRC then tipped with High Grade Tungstun Carbide. This is a rough guide and varies between styles, lengths and diameters.