1. The spanner is a hand-held tool used to provide grip and tighten or loosen fasteners. It gives a mechanical advantage in applying torque to turn objects. The tool is used in turning rotary fasteners like nuts and bolts.
2. Spanners are made of a metal shaft with a profile opening on one end. The profile head, or the jaw, is the part that fits over, around or into the fastener to grip it. Many spanners in the market are double-ended tools with two profile heads on both ends of the shaft.
3. The combination spanner is among the most commonly used hand tools in a household. As the name suggests, it is a combination of two spanner types: the open-ended spanner and ring spanner.
4. The open-ended spanner has a U-shaped profile with a fixed width to fit the nut or bolt head. The head has two flat sides that grip on opposite sides of a fastener for tightening or loosening it.
5. The ring spanner has a ring-shaped profile like an enclosed loop. The loop is placed over the head of a fastener for turning it clockwise or anti-clockwise.
6. Combination spanners are double-ended tools. It has an open-ended profile on one end and a closed loop on the other end.The two heads are usually at a 15 degree angle to the shaft for better access to the nuts or bolts. This single tool serves the functions of two spanners at once.
7. For the purpose of turning fasteners, the open-ended head is stronger than the ring head. It is advised to use the open-ended head for the final tightening of a fastener or for the first few turns of loosening one, while the ring head can be used for the main part of the task. This is a benefit of using the combination spanner.
8. Combination spanner will work for only one size of nut or bolt. Both the profile heads are of the same fastener size. The heads usually range from 4mm to 50mm. As the fastener size increases, the length of the spanner will also increase.
9. Before picking a combination spanner for any task, check the length of the shaft. Longer spanners provide a stronger turning force, so they can be used for larger or stiffer fasteners.
10. The profile head of a spanner determines how easily it can be worked with.The looped end of a combination spanner comes in contact with all sides of a fastener, thus, it provides a much better grip and is less likely to slip while turning. This is why the closed profile is more preferred for turning fasteners when tightening or loosening a nut or bolt. The open-ended end is used only for the first few turns when loosening or for the final tightening.
From home repair jobs to assembling furniture or any kind of DIY project, the combination spanner can assist in a wide variety of applications. This useful tool is a must-have in every household and workshop. TATA Agrico offers the best quality in combination spanners with high durability and long-lasting strength.