Superior Quality: Made from forged carbon steel with YG6 carbide cutting blade for high quality and longevity. Cut a Precise Hole: The Forstner bit has two sharp cutting edges and a center point for fast and accurate cuts of a hole in wood. Wide Applications: The Forstner bit is ideal for drilling in soft and hard woods, MDF, plywood, plastic. Compatibility: 15mm-20mm drill bit with 8mm shank, over 20mm drill bit with 10mm shank compatible with all standard drills, bench drills. Specifications: Material: 45 Carbon Steel, YG6 Carbide Color: Yellow Diameter: 15mm-100mm Total Length: 90mm Drilling Depth: 60mm Shank Diameter: 8mm/10mm (15mm-20mm bit with 8mm shank, over 20mm bit with 10mm shank) Feature: 1. For all wood, plywood, MDF, plastic. 2. The centering tip and carbide cutting blade for precision cutting results. 3. Ideal for drilling flat bottom holes, pocket holes or overlapping holes. 4. Ideal for setting invisible hinges, door and drawer lock holes or removing knots. Warm Tips: 1. Hardwood processing can be intermittent drilling to avoid material burns and extend the life of the hole opener. 2. Cannot drill metal and non-ferrous metal, otherwise the hole opener will be damaged. 3. The cutting material must be fixed and the drill bit must be vertical. Delivery quantity: 1 piece becomeveryrich