Features Incisive Blade: Highly sharpened 3 blades enable good chip removal, which will largely facilitate both the drilling and your operation. Good Alloy Steel: Having been through exquisite workmanship, the premium alloy steel material with 63‑65HRC high hardness is very durable. Limit Drilling: Comes with limit function, the forstner drill bit requires no adjustment, thus the smoother drilling has high efficiency. Wide in Utility: Allows for wide application in installing hinge, woodworking perforation, plastic products and so on, very practical. Easy to Install: Designed to have a compact size and a light weight, the drill bit ensures convenient carrying and installation. Specification: Item Type: Forstner Drill Bit Material: Alloy steel.  Length: Approx. 80mm / 3.15in Diameter: Approx. 35mm / 1.38in Application: Designed for hinge, woodworking perforation and plastic products.  Package List:1 x Forstner Drill Bit 1 x Storage Box Package List 1 x Forstner Drill Bit 1 x Storage Box