Material and build: Heavy-duty metal angle plates with precision-ground angles for accurate, repeatable setup and long-term durability. What you get: Two-piece angle plate set including: 45/45/90 angle plate — size: 3inch x 3inch x 4-3/8inch 30/60/90 angle plate — size: 4inch x 3-15/32inch x 2inch Mounting and thickness: Each plate is 9/32inch thick and has four mounting holes sized 11/32inch for secure fastener attachment and stable fixturing. Key benefits and why you need it: Accurate positioning: Precision-ground angles ensure reliable 45/45/90 and 30/60/90 reference faces for machining, layout, inspection, and assembly tasks. Stable fixturing: Thick metal construction and four 11/32inch holes allow rigid mounting to workbenches, fixtures, or machine tables to minimize movement and vibration. Faster setup and consistent results: Use these plates to square or angle parts quickly, improving throughput and reducing measurement or alignment errors. Versatile compatibility: Designed to integrate with common shop tooling and inspection equipment for straightforward installation and use. Typical applications: Machining: Use the 45/45/90 or 30/60/90 plate to square parts against a milling machine table, drill press, or for precise clamping during finish operations. Inspection and layout: Provide a stable, known-angle reference when checking squareness, setting up indicators, or marking parts for fabrication. Fabrication and assembly: Mount to fixtures or jigs to hold components at exact angles for welding, assembly, or repetitive production work. Performance highlights: Precision-ground faces deliver consistent angle accuracy for inspection and production environments. Robust thickness and mounting hole pattern support secure fixturing and compatibility with standard fasteners. Two-angle options in one set cover common right-angle and acute-angle needs without additional tooling. What to verify before use: Confirm hole spacing and fastener compatibility with your fixture or machine table. Ensure selected plate size (3inch x 3inch x 4-3/8inch or 4inch x 3-15/32inch x 2inch) matches the workpiece and clamping requirements. This two-piece metal angle plate set provides reliable, precision-ground reference faces (45/45/90 and 30/60/90), four 11/32inch mounting holes, and 9/32inch plate thickness to support accurate machining, inspection, and assembly operations.