Description This practical tap wrench tool set is a general tool for hand tapping operation. Adopting alloy steel, which is and has. With this set, the internal thread processing will become more easily and precisely, fit for for Model processing, Handmade, DIY use.-metric tap set Feature-screw tapping kit - Color: as shown.- straight flute tap set - Material: alloy steel.-thread tap drill bits set - Size: 15.2x10.8x3cm/5.98x4.25x1.18inch-metric drill bit set - Included: 1pc - tap holder, 7pcs screw taps (M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5, M12x1.75) 7pcs drill bits (2.5, 3.3, 4.2, 5, 6.8, 8.5, 10.2)-threaded tap drill bit set - Made by alloy steel material, which is and has longer service life.-tap set metric - Can improve the efficiency of processing thread effectively.-tap & drill bit set - for manual processing, also can be used for electric tools.-Screw Tap set - Suitable for model processing, Handmade, DIY use.-drill tap bits set tap and bit set metric-Perfect For Model Processing Enthusiasts Looking To Achieve Precise Threads In Various Materials-drill and tap set screw tap set-Includes Metric Drill Bits Essential For Accurate Hole Drilling Tasks-tool set tap bits set-Suitable for model processing, Handmade, DIY use-metric tap drill bit set drill tap combination bit set-Perfectly Compatible With Electric Tools For Efficient And Effortless Thread Processing-drill bit tap size chart tapping tool-Includes Fifteen Pieces Covering A Wide Range Of Metric Sizes For Versatility-metric thread taps set tapping