Feature 1Clean in Drilling: Designed to have straight flute, the step drill bit can easily drill out clean holes to better fit the fixing screw. 2Premium Hex Shank: Equipped with universal hex shank, the 432mm 15 step drill bit can perfectly match the power tools under high speed. 3Wider Application: The woodworking step drill bit can be widely applied to density board, medium fiber board, particle board and more. 4Cemented Carbides: Made of premium high speed steel material, this drill bit that has been through good workmanship has great durability. 5Simple to Install: Comes with a compact size and a light weight as well, the drill bit is very convenient to install within minutes.Item Type: Step Drill BitMaterial: High Speed Steel .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Step Drill Bit1 x StorageBox