The CT-MS SPLINE(12) 3/8X18 is a high-quality spline drill bit designed for efficient drilling in tough materials. With a diameter of 3/8 inch and a length of 18 inches, this bit is perfect for heavy-duty applications. Constructed from premium materials, it offers exceptional durability and performance. The spline design enhances torque transfer, allowing for faster drilling speeds and reduced wear. Compatible with spline drive rotary hammers, this bit meets industry standards, making it an essential tool for construction and renovation projects.