Hex Keys & Spline Keys

Hex keys, also known as Allen wrenches, are used to drive screws and bolts with hexagonal sockets. Spline keys are similar but designed for spline-shaped recesses, offering more contact points for higher torque applications, commonly found in automotive or industrial settings.

Metric Hex Keys are sized in millimeters (e.g., 2mm, 5mm, 10mm), while imperial (SAE) Hex Keys are sized in inches (e.g., 1/16", 1/4", 3/8"). It's crucial to use the correct size to prevent stripping the fastener head.

tudo.lk offers both individual Hex Keys and comprehensive sets. While sets provide a range of sizes for various tasks and are often more cost-effective, you can also find individual keys if you only need a specific size for a particular repair or project.

Yes, tudo.lk provides convenient island-wide delivery for all Hex Key and Spline Key purchases across Sri Lanka. Simply place your order online, and we'll ensure your tools are delivered right to your doorstep, no matter where you are.

tudo.lk offers a variety of secure payment options for your convenience. You can pay using major Credit Cards, making your purchase quick and easy. Additionally, we support KOKO installment plans, allowing you to pay for your tools in flexible, interest-free installments.

To choose the correct size, you typically need to match the tool to the fastener's socket. Most fasteners will have their size specified (e.g., M5 for metric hex, 1/4" for imperial hex). Using the wrong size can damage both the tool and the fastener. If unsure, it's best to try a slightly smaller size first, as a loose fit indicates it's too small.