Check the listing for details. Forstner Drill Bits 22mm (7/8") Hex Shank 3/8" for Woodworking. Condition: New. Listed at 14.33 USD. The Forstner drill bits designed to bore clean, flat-bottomed holes with high accuracy, making them good for various woodworking applications.Come with carbide tips, providing durability and resistance against heat and wear, ensuring longer bit life, especially when drilling through harder woods or laminates.Suitable for use on a wide range of materials including wood, plywood, MDF, and plastic, these bits can handle different projects from furniture making to DIY crafts.When using Forstner drill bits, remember to maintain a steady speed, and avoid excessive pressure to prevent overheating and premature wear.Apply lubricant such as cutting oil or wax for smoother drilling, especially when working with harder woods. This helps reduce friction and heat.