Dimensions: - Parallel length: 120 mm - Parallel thickness: 4 mm - Height options: 10, 15, 20, 25, 30, 35 mm Material and treatment: - Made from high-quality tool steel - Stress-relieved against deformation - Precision ground and hardened for long-term accuracy What it does: - Enables precise workholding for drilling, milling, grinding, and assembly tasks - Provides stable, repeatable clamping with good rigidity - A versatile set that covers multiple common workpiece heights for accurate parallelism Storage and transport: - Supplied in a wooden box for easy storage, protection, and transport Use scenarios: - Drilling: hold parts securely to achieve straight, accurate holes - Milling or grinding: clamp components to maintain consistent parallel surfaces during machining - Assembly work: space and align parts precisely for repeatable fits and fixtures