- Long-lasting Durability: This round hole hand crank features a smart design that enhances longevity, ensuring a longer service life and improving the efficiency of your machine tools. - Easy Bolt Installation: Save time and reduce costs with the straightforward installation process. This hand crank can be quickly attached using screws, eliminating the need for complicated steps. - Resistant to Deformation: Crafted from high-strength, wear-resistant ABS material, this hand crank is robust and shock-resistant. It is designed to maintain its shape, providing secure and reliable use over time. - Versatile Compatibility: Specifically designed for 12 mm or 14 mm openings, this hand crank ensures smooth operation and offers users exceptional comfort and flexibility. Its multifunctional design is suitable for various machine tools, meeting diverse application needs. Use Cases: 1. Ideal for precision machinery where consistent manual operation is required, enhancing control and efficiency. 2. Perfect for workshop environments, allowing quick adjustments without the need for complex tools. 3. Suitable for DIY projects and home repairs, providing an effective solution for manual operation of different equipment.