The CT-QT SPLINE(46) 1-1/2X36 by Field Tool Supply is engineered for high-performance drilling in demanding environments. With a diameter of 1-1/2 inches and a length of 36 inches, this spline bit is designed to tackle tough materials such as concrete and masonry. Crafted from premium steel, it ensures durability and resistance to wear. The spline connection allows for a secure fit with compatible tools, maximizing efficiency. Perfect for contractors and builders, this bit is essential for achieving precise results in construction and renovation tasks.