Buzz
Key Points to Remember
- Spanner wrenches are tools specifically created to grip and rotate fasteners like nuts or bolts, which have pins or tabs around their edges.
- Popular variations include the C spanner, which has an open head shaped like the letter C, and the ring spanner, which features a fully enclosed ring that securely fits on hexagonal or square bolts.
- These wrenches are indispensable for tasks in plumbing and gas repairs, as they provide strong leverage and can reach into tight spaces.
A wrench is a tool used to grip and either tighten or loosen a fastener, such as a nut or bolt. The term 'spanner wrench' is essentially redundant: in America, this tool is called a wrench, while in the UK, it's referred to as a spanner. While various wrenches exist, the spanner wrench specifically refers to a tool with pins or tabs around its circumference. These wrenches are typically made of steel for durability and often chrome-plated to prevent rust.
Spanner wrenches come in many varieties, each with a uniquely shaped hook. Some even feature double-sided hooks, functioning as multi-tools. The C spanner is the most commonly used type. Its open head is shaped like the letter C, and its jaws are designed to fit a matching nut. The obstruction spanner resembles the C spanner, but its jaws are angled more steeply to help reach nuts in tighter spaces. Meanwhile, the ring spanner has a fully enclosed ring that fits tightly over a hexagonal or square bolt. Though it can be tricky to position the ring spanner properly, it provides greater leverage than open spanners. Be sure the spanner wrench is the correct size and properly seated around the nut before turning; otherwise, it could slip, potentially damaging the tool or injuring your hand.
Spanner wrenches are frequently used in plumbing to fix leaking pipes or faucets. Their compact size and lightweight design make them ideal for maneuvering in tight spaces. Despite their smaller size, they provide sufficient torque to loosen pipe connections that have remained undisturbed for years. Similarly, these wrenches are widely utilized in gas repairs to access and open gas pipes.
