Description:Material: High Speed SteelLength: 3cmDiameter: 1.0mmUse: Wood DrillingType: Twist Drill BitBits Material: HSS (High Speed Steel)Surface Finish: Titanium CoatingManufacturing Technology: Full GrindingApplication: Wood， Metal DrillingAdvantages: Stronger，Sharper !#!amp!*!amp; Much higher Rigidity，Satisfied work，Longer lifeDrill Packing: 20pieces\/LotPackage Included:1 X 20pieces\/Lot