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    21mm Spark Plug Socket 6-Point

    21mm 6-point spark plug socket with a built-in rubber sleeve has drive size 3/8", socket diameter 21mm, outer diameter 21.8mm, socket length 65mm, wall thickness 2.8mm, chrome-vanadium steel material.
    SKU: T-SPS-RS21
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    21mm 6-point spark plug socket with wall thickness 3.2mm, length 65mm, drive size 3/8".


    Model T-DT190TW-10
    Weight 150g
    Contact point 6-point
    Measurement standard Metric
    Diameter 21mm
    Outer Diameter 27.8mm
    Length 65mm
    Wall thickness 3.2mm
    Material Chrome-vanadium steel
    Inside part Rubber sleeve
    Drive size 3/8 inch

    Tips: What to do if the spark plug is broken when it is removing?
    Although the spark plug socket is a good tool for disassembling spark plugs, it is still unavoidable to break the spark plug when disassembling the spark plug. Basically the white ceramic insulator is removed and broken in disassembly, but the spark plug head is still stuck there. How to take out the broken spark plug is a very technical matter. If you do not have experience in this area, it is best not to try it lightly.
    There are three ways to take out the broken spark plug:

    1. Welding
      Weld a slender iron bolt on the broken spark plug head by welding, and then remove the broken spark plug. This method usually requires many times of welding succeeding, and it is very difficult.
    2. Reverse thread tool
      Because spark plugs are disconnected more frequently, there is a special reverse thread tool for spark plugs. Use a counter-thread tool to tap the thread inside the broken spark plug head, and then turn the tool to take out the broken head. When tapping the thread, the thin iron wire will fall into the cylinder. After removing the broken head, use a magnetic rod to suck out the thin iron wire as much as possible.
    3. Smash
      Use a long flat-head screwdriver to smash the broken head to force it into the cylinder, and then use a magnet to suck out the broken spark plug. This method will not only damage the threads on the cylinder, but also damage the engine due to unclean debris, so this method is not recommended.
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