- Ensure compatibility: This 1/32" - 5/8" super heavy-duty drill press chuck features a keyless JT33 mount and MT2-JT33 drill chuck arbor. Please verify sizes and structure before purchasing. Note that it does NOT fit MT33 drill presses. - Modification made easy: If you need to adapt your drill system, simply purchase the correct adapter. Ensure your machine has an R8 taper for proper fit. This chuck is designed for heavy-duty drills only, not light-duty models. - Secure locking mechanism: When in use, ensure the chuck tightens around the drill bit securely. This guarantees that your bit is locked in place, providing safety and reliability. For added protection, we recommend wearing safety glasses while operating. - Precision performance: Our keyless chuck is engineered for larger drill presses, holding bits firmly with minimal runout. The approximate runout of 0.001" at the shank has been rigorously tested before packaging. While suitable for household machine tasks, it is not intended for high-precision instrument manufacturing. - Practical applications: Ideal for woodworking, metalworking, and DIY projects, this chuck enhances your drilling capabilities. Whether you're a professional or a hobbyist, it provides the strength and reliability needed for various tasks. - Customer support: If you encounter any issues or have questions, feel free to reach out to us anytime. Your satisfaction is our priority.