INS Products Has Been Making Carbide Products For Traction And Wear For Over 30 Years. We Use Only Mining Grade Carbide And Heat-Treated Alloy Steel For The Hardest, Most Durable Products In The Toughest Applications. All Of Our Products Improve Bite On Hard Surfaces - Ice, Hard-Pack, Rocks, Clay. Our Screw-In Studs Are Designed To Be Mounted Without Drilling, For Easy Installation. All of Our Parts are Built to Last Many Seasons.