Specifications:Model: 2#, 3#, 4#, 5#, 6#Fit Tap Size (Metric / Inch): M5 / 8#-10#, M6 / 1/4", M8 / 5/16", M10 / 3/8", M12 / 1/2"Number of Flutes: 3 Flutes (M5-M10), 4 Flutes (M12)Slot Depth: 5mm / 0.2", 5mm / 0.2", 6mm / 0.24", 7mm / 0.28", 10mm / 0.39"Slot Width: 1.5mm / 0.06", 1.7mm / 0.07", 2.6mm / 0.1", 3.5mm / 0.14", 3.5mm / 0.14"Square End Size: 3.5mm / 0.14", 4mm / 0.16", 5mm / 0.2", 6mm / 0.24", 8mm / 0.31"Total Length: 57mm / 2.24", 60mm / 2.36", 58mm / 2.28", 66mm / 2.6", 66mm / 2.6"Material: High Carbon SteelFinish: UncoatedPackage Content: 1 Set (5pcs) x Tap ExtractorDescriptions:Made of high carbon steel, the tap extractor features high hardness high strength and wear resistance.Suitable for efficiently removing stripped, broken or rust taps from wood or metal surface. Pay attention to the optimal depth of insertion.