The TEXALAN Hold Down Clamp Clamping Set Kit is designed specifically for use with Bridgeport milling machines, providing a secure and precise method for holding workpieces during machining operations. The set features a 1/2" table T-slot size and 3/8" stud size (3/8"-16) for compatibility with a variety of milling machines. This comprehensive set includes 2 each of TN0238 T-nuts, 25S-38, 40S-38, 60S-38 step clamps (2pcs each size), and STB-1, STB-2, STB-3 step blocks (2pcs each size), allowing you to accommodate various workpiece sizes and shapes. Made of premium tool steel for long-lasting performance, all parts are heat treated for added durability and strength. Ideal for use in workshops, garages, and machine shops, this clamping set ensures a firm and secure grip on workpieces during milling, drilling, and other machining operations.