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An open spanner, also known as an open-end wrench or open-end spanner, is a hand tool used for gripping and turning nuts or bolts. It consists of two parallel jaws or ends, each with a fixed opening that fits a specific size of fastener. Open Spanner Manufacturer in Kolkata. The open spanner is designed to be used on fasteners with accessible sides, where there is sufficient space to apply the tool. Here are some key features and aspects of open spanners:
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Open-End Jaws: The open spanner has two jaws, with each end having an open and U-shaped design. The jaws are parallel to each other and have fixed openings that correspond to specific fastener sizes.
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Size and Measurement: Open spanners come in various sizes, ranging from small to large, to accommodate different fastener sizes. The size is usually indicated by a numerical value, corresponding to the dimensions of the fastener it can fit, such as 8mm, 10mm, or 1/2 inch.
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Single Plane Contact: The open spanner provides contact with the fastener on only two opposing sides. It requires the user to align the jaws correctly on the fastener to prevent slipping and avoid damaging the fastener or the tool.
