7Pcs Drill Bit Set 6Pcs M3-M10 Combination Drill Tap Bit Set HSS 6542 Titanium Coated Deburr Countersink Drill Bits with

 Descriptions 7Pcs Drill Bit Set 6Pcs M3 M10 Combination Drill Tap Bit Set HSS 6542 Titanium Coated Deburr Countersink Drill Bits with 1Pcs Automatic Center Punch  Specifications Product nameDrill Bit SetModel numberE79868ColorGold RedTap Drill MaterialHigh Speed Steel 6542Center Punch MaterialBrassCombination Drill Tap Bit Set  SizeBit Diameter mm Shank Diameter mm Shank Length mm Blade Length mm Total Length mm M3x0 53 06 35412565M4x0 74 16 35363166M5x0 85 06 35363267M6x16 06 35343468M8x1 258 16 35333869M10x1 510 06 35324070 Features  1 The titanium coating will protect you drill bit well and make a better drill performance and use life 2 High hardness rustproof solid and durable 3 The advantage is opening tapping chamfering 4 Self centering point do not need assistant center drilling or center punching 5 Suitable for drilling tapping cutting on soft metal aluminum plate iron etc 6 Drilling and tapping in one one step processing greatly save processing steps and time costs improve working efficiency 7 HSS6542 M2 is of higher hardness and more durable than the HSS4341 and is suitable for cutting the steel even the 2mm 304 steel  8 Including 1Pcs center punch Package Included 6xCombination drill tap bits1xCenter punch