Feature：

1. Material and Heat Treatment: Our 61 pcs Master Thread chasers are crafted from top-notch tool steel or carbon steel, renowned for their exceptional cutting prowess and durability. Heat treatment is a standard procedure to bolster hardness and wear resistance, ensuring efficient repair of thread damage.
2. Color Coding for Thread Types: To facilitate easy identification, rethreading tools are color-coded. Silver denotes UNC threads, black for UNF, and gold for Metric threads, aiding quick visual differentiation in various applications.
3. Versatile Applications: Thread chasers find extensive utility across diverse industries such as automotive repair, mechanical manufacturing, and industrial sectors. They excel in repairing damaged threads in crucial components like oil holes in car engines and threaded holes in machinery.
4. Cost-Effective Solution: Offering a pocket-friendly alternative, thread chasers present a cost-effective means to repair damaged threads. By restoring threads instead of replacing entire fasteners or resorting to more intricate repair methods, they save both time and expenses.
5. Convenience and Efficiency: Whether utilized in professional settings or for domestic repairs, thread chasers prove invaluable in restoring thread functionality, thwarting further damage, and obviating the necessity for complete fastener replacement. Their efficiency and convenience make them a preferred choice across various repair scenarios.

Specification:

Material: steel
SAE Thread File 1: 9 - 10 - 12 - 16 - 20 - 27 - 28 - 32
SAE Thread File 2: 11 - 12 - 13 - 14 - 16 - 18 - 20 - 24
Metric Thread File: 0.75mm - 1.0mm - 1.25mm - 1.50mm - 1.75mm - 2.00mm - 3.00mm
UNC (Silver): 5/8"-11, 9/16"-12, 1/2"-13, 7/16"-14, 3/8"-16, 5/16"-18, 1/4"-20; UNF (Black): 5/8"-18, 9/16"-18, 1/2"-20, 7/16"-20, 3/8"-24, 5/16"-24, 1/4"-28; Metric (Gold): M14x1.5, M12x1.75, M12x1.5, M12x1.25, M11x1.5, M10x1.5, M10x1.25, M10x1.0, M8x1.5, M8x1.25, M8x1.0, M7x1.0, M6x1.25, M6x1.0.

Package included:

7 x UNC Taps (Silver)
7 x UNC Dies (Silver)
7 x UNF Taps (Black)
7 x UNF Dies (Black)
14 x Metric Dies (Gold)
14 x Metric Taps (Gold)
1 x SAE Thread File
1 x Metric Thread File
1 x SAE Thread File
（as shown in the picture）

Note:

 *Please feel free to contact us for whatever we can help.

  *Box Color: The color of the box is random