The 1-1/2X1/2 MACH CTSK HS 90° from Field Tool Supply is a high-speed steel countersink designed for precision machining. With a 1-1/2 inch diameter and a 1/2 inch shank, this tool is perfect for creating smooth, beveled edges in metal and wood. The 90° angle allows for clean countersinking, ensuring a flush finish for screws and fasteners. Its durable construction provides excellent wear resistance, making it suitable for heavy-duty applications. This countersink is compatible with standard drill chucks, making it a versatile addition to any tool collection.