3pcs Forstner Drill Bit Set 19mm (3/4") 20mm (25/32") 21mm (13/16") K30/C1 Carbide Forstner Bits Wood Hinge Hole Opener Cutter for Woodworking Drilling

Size - Drilling diameter: 19mm / 3/4", 20mm / 25/32", 21mm / 13/16"; shank size: 8mm / 5/16"; drilling depth: 54mm / 2-1/8"; total length: 88mm / 3-15/32" (The forstner drill bit is specially designed for industrial use.)
Material - K30/C1/YG8 grade tungsten carbide tips have excellent hardness, wear resistance, heat resistance, ensuring long-lasting performance and extended tool life. Provides precision drilling for smoother and more efficient cutting.
Feature - The spur help guide it through wood and ensure accurate start holes, reducing slippage. Arc curve design head for easy chip-removal, more efficient perforation. Adopts 45# carbon steel shank, which has good strength, durability and sufficient rigidity.
Applications - The forstner bit is suitable for softwood, hardwood, solid wood, plywood, laminate and MDF. Easily drills flat-bottomed and pocket holes with precise, smooth finish. Widely used for furniture joints and woodworking projects, such as mortise joints, dowels, hinge cups, shelf pin, pocket screw.
Note - Used with handheld drills, drill presses, CNC routers etc. Recommended to use on desktop (fixed) equipment. Do not drill metal and non-ferrous metals. Use a cutting oil or lubricant, hold still, control the speed, apply pressure gradually, and always wear protective equipment.

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