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【Professional Thread Repair Tool 】VKALTUL 42pcs thread chaser set has measurements in UNC (Unified National Coarse) UNF (Unified National Fine) and Metric. It is very suitable for creating new threads or repairing damaged threads on most metals such as cast iron, steel, aluminum and copper. It can easily help you repair damaged external and internal threads on nuts, bolts and studs.
【High Quality】Made of the highest quality carbon steel materials, individual pieces are highly tempered, with strong strength and maximum durability.This rethreading kit includes 21 rethreading dies,19 rethreading taps and 2 SAE rethreading files.The dies and taps pieces are hex shaped to use with a wrench or socket.The thread files come with a removable plastic sleeve to cover the cutting edges that are held in the hand to prevent scratching the fingers.
【Multi Size Thread Restorer Kit】The dies included are UNC(silver): 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12, 5/8"-11;UNF (black): 1/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, 1/2"-20, 9/16"-18, 5/8"-18 and metric (gold): M6x1.00, M8x1.25, M10x1.25, M10x1.50, M12x1.25, M12x1.50, M12x1.75.The 19 rethreading taps included are UNC: 1/4"x20, 5/16"x18, 3/8"x16, 7/16"x14, 1/2"x13, 9/16"x12;UNF: 1/4"x28, 5/16"x24, 3/8"x24, 7/16"x20, 1/2"x20, 9/16"x18 and metric: M6x1.00, M8x1.25, M10x1.25, M10x1.50, M12x1.25, M12x1.50, M12x1.75. The thread files are SAE: 9,10,12,16,20,27,28,32 and 11,12,13,14,16,18,20,24.
【Easy to Store Thread Restorer Kit】All thread repair tools are safely and orderly stored in the blow molding box, which can withstand high-strength extrusion without deformation and protect the product from damage. The groove in the box can prevent thread repair tools from moving freely and effectively prevent wear.
【Easy to Use】The dies and taps of this metric thread chaser kit have three colors, silver corresponds to UNC size, black corresponds to UNF size, and gold corresponds to metric size, each of them is marked with corresponding specifications, which is easy to find when using. Besides, the corresponding model is marked next to each groove on the box, which can be put back after each use to facilitate the next use.