Description:4pcs HSS Contersink Drill\/ Step Drill\/Tapered Cone Drill\/Saw Dill Bit Titanium Coated
Material: High Speed Steel 4241Surface: Titanium PlatedHandle: Hexagon ShankQuantity: 4pcsWeight: 265GScop: Used for the hardness of the material which is below 25 ， like iron borad， steel board， PVC board， Insulation board， 4mm thickness within the timber， ect.
Specification:Step drill : 4~12mm (4，6，8，10，12mm)， 5 stepsSaw Drill : 6mmContrersink : 12.4mm 90 DegreeTapered cone drill : 8~20mm
Features:High speed steel material， more durable.Titanium coated to reduce friction and run coolerNo need for a pilot hole， can automatically deburr holes as you drill.4pcs combination， can meet different demands.Working with water cooling， can effectively extend the service life of bit， drilling speed 250--400 recommended.Suitable for use in hardness under 25 artifacts， such as carbon steel plate， sheet iron， insulation board， PVC board，wooden board， plate thickness under 4mm.
Package included:1x 4-12mm Step Drill1x 6mm Saw Drill1x 12.4mm Contrersink1x 8-20mm Tapered cone drill