Versatile Fit: Designed to engage with 1-3/8 inch OD four-slot castle nuts, DIN 1804 nuts, round retaining nuts, castellated collet nuts, slotted nuts, spindle nuts, and locknuts, ensuring a wide range of applications and a perfect fit for various mechanical tasks. Durable Material: Crafted from robust steel, this wrench provides effortless turning and consistent high performance. Its sturdy construction guarantees long-lasting reliability and efficiency in handling tough mechanical jobs. Efficient Design: This lock nut wrench is engineered for optimal performance in tight spaces. Its compact and precise design enhances workflow and simplifies operations, making it an indispensable tool for mechanics and DIY enthusiasts alike. Enhanced Torque Support: Equipped with a 3/8 inch ratchet opening, this spanner tool offers additional leverage, making it easier to apply the necessary torque for stubborn or tightly fitted nuts. This feature is especially useful in automotive and machinery maintenance. Note: The actual product may have slight color difference or difference, which will not affect the use Colour: Black Material: Steel Package Contents: 1 x Survival Nut Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.