Feature:<br /><br />Metric Taper Plug Tap tapping drill.<br />multi-use drill tap deburr countersink hex bit kit.<br />Drill/Tap Bit Tapping， Deburring And Countersink Bit.<br />Drill/Tap/Countersink Set， Metric， 6 Pc.<br />Drill/Tap Bit.<br />hole drilling， tapping and deburring/countersinking.<br />Back tapered beyond tap to prevent thread damageover-drilling.<br />Deburr/countersink also provided on bit beyond back taper.<br /><br />Specifications:<br /><br />Material : High Speed Steel 6542<br />Shank : 1/4 IN Quick Change Hex<br />Metric 6PCS:M3 M4 M5 M8 M6 M10<br />Suitable for soft metal tapping， such as aluminum plate， 3-4mm thickness.<br />The advantage is opening， tapping， chamfering.<br /><br />Package Included:<br />6PCS Metric Drill/Tap/Countersink Bit Spiral hine tap Screw Tap Drill