【3Pcs Thread Files】The thread restoring file set includes 3 thread chaser files. SAE File 9, 10, 12, 16, 20, 27, 28, 32. Metric File 0.75mm, 1.00mm, 1.25mm, 1.50mm, 1.75mm, 2.00mm, 2.50mm, 3.00mm. SAE File 11, 12, 13, 14, 16, 18, 20, 24
【Application】The thread repair tool can restore damaged external threads
【Plastic Caps】The plastic cap could be worn on the thread file to protect your hand from injury