DARTOTEK Combination Drill and Tap Bit Set,Titanium Coated Tapping Bit Tool 13pcs SAE/Metric Screw tap Drill bit for Drilling Tapping, Countersinking,with Quick Change Adapter - SHANGHAI DIATOOL CO., LTD., DK2-O002402D001

• 1.Wide Application: The taps drill bits is mulit-function, three-in-one operation, which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet and plastic at the same time 2.Superior Craftsmanship: The taps are made of high speed steel, which can ensure sharp, fast execution and retain strength and efficiency. The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill, is more wear-resistant and prolongs the service life 3.High efficiency: Drilling & Tapping & Countersinking is three-in-one operation at the same time, so as to quickly , complete work completely, greatly save processing steps and time costs, and improve work efficiency 4.What you got: 6PC SAE: 6-32NC, 8-32NC, 10-24NC, 10-32NC, 12-24NC, ¼-20NC. 6 metric-M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5. 1 piece-quick change adapter.Can be used to tap various threads. The set includes SAE and metric sizes, so it has high versatility. Each tap drill is engraved with a label, which is convenient for you to choose the size that suits you 5.Machine: The convenient ¼-inch (6.35mm) hex shank suitable for most Electric drill, bench drill, drill press and Tapping machine. When using, need to drill vertically, don't swing from side to side, don't rotate too fast when drilling, don't press too hard to avoid breaking