Wrench L is a tool used tighten or loosen the bolts hexagon head embed Choose the size to fit bolts to tighten if loose will make the wrench head bolts and damaged.Which may cause damage or spiral and material strangled damage. One should be careful in another bowl, loosen the nut. Is not should weigh too much in the first place, should be gently apply pressure to ensure that knock ตัวแล้ว pattern.In order to reduce the damage to the screw.
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