ER Spanner Wrench Tools for Collet Nuts ,Spanners are basically divided into two types, dead wrench and live wrench. The former refers to the wrench with fixed number written on it, while the latter is the adjustable wrench. 1. Solid spanner: one end or both ends are made with opening of fixed size, which is used to screw nuts or bolts of certain size. 2. Ring spanner: both ends have working end with hexagonal hole or twelve angle hole, which is suitable for the occasions where the working space is narrow and ordinary spanner cannot be used. 3. Dual purpose wrench: one end is the same as single solid spanner, the other end is the same as the ring spanner, and the bolts or nuts of the same specification are screwed at both ends. 4. Adjustable spanner: the opening width can be adjusted within a certain size range, and it can turn bolts or nuts of different specifications. The structural features of the wrench are that the fixed jaw is made into a flat jaw with fine teeth; one end of the movable jaw is made into a flat jaw; the other end is made into a concave jaw with fine teeth; by pressing down the worm, the movable jaw can be quickly removed and the position of the jaw can be changed. 5. Hook spanner: also known as crescent spanner, used to turn flat nuts with limited thickness. 6. Socket wrench: it is composed of multiple sleeves with hexagonal holes or twelve holes, and is equipped with handle, extension bar and other accessories. It is especially suitable for the bolts or nuts with very narrow screw position or deep depression. 7. Hexagon wrench: L-shaped hexagon bar wrench, specially used for turning hexagon screw. The model of the hexagon wrench is based on the size of the opposite side of the hexagon, and the bolt size has the national standard. Purpose: it is specially used for fastening or dismantling round nuts on machine tools, vehicles and mechanical equipment. 8. Torque wrench: it can display the applied torque when screwing the bolt or nut; or it will send out light or sound signal when the applied torque reaches the specified value. Torque wrench is suitable for the torque size has clear provisions.Spanner Wrench Set,Er Wrench Spanner,Er Spanner,Er Collet Spanner.
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