15-100mm Forstner Bit Boring Hole Saw Cutter Round Shank Woodworking Drill Bit

15-100mm Forstner Bit Woodworking Drill Bit Set Boring Hole Saw Cutter Carbide Tip TCT Hex/Round Shank TUNGSTEN CARBIDE TIP(TCT) Tungsten carbide is approximately twice as stiff as steel with Young s modulus of approximately 530–700 GPa (77 000 to 102 000 psi) and is double the density of steel—nearly midway between that of lead and gold. It is comparable with corundum (α-Al2O3) in hardness. Tungsten Carbide tip is specially designed to cut through holes cleanly in end grain and thin stock great for boring concealed hinges and door locks. DESIGN WITH CURVE In a design with curves the head is good at removing the debris and working efficiently. Features： 1. Forstner Bit drill clean holes in soft and hardwood. 2. Two spurs and centering point to give the perfect solution to repeated clean and accurate hole cutting time after time. 3. The sharp center spur accurately locates the center of your hole. 4. Use to drill precise flat bottom holes with no chipping in any thickness of soft wood. 5. For drilling holes in any direction and making arched openings. For drilling partially overlapped flat bottom holes for easy mortising. 6. Should be used with a power drilling machine here is not included. Please Note: 1. When drilling holes the Forstner drill bit is made only in the clockwise direction not reversible and the speeds from low to high are a gradual process. 2. Please grind the tool nose and tips to avoid aging and damage when breaking or it will cause a steep decrease in accuracy and quality for drilling holes after the tips break. Specification: Product Name: Forstner Bit Material: Tungsten Carbide Tip(HRC.70) & Carbon Steel Body Package: 5pcs =15 20 25 30 35mm 11Pcs=15mm 20mm 25mm 30mm 35mm 40mm 45mm 50mm 55mm 60mm 65mm Size Chart: Size (D) Overall Length (L1) Shank Dia. (d) Shank TypeShank Length (L1) Cutting Depth Max. mmmmmmmmmm 15808Round2255 16808Round2255 17808Round2255 18808Round2255 19808Round2255 20808Round2255 21808Round2255 22808Round2255 23808Round2255 24808Round2255 25808Round2255 26808Round2255 28808Round2255 30808Round2255 32808Round2255 35808Round2255 38808Round2255 40809Round2255 42809Round2255 45809Round2255 48808Round2255 50809Round2255 53809Round2255 55809Round2255 60809Round2255 65808Hex2255 70808Hex2255 75808Hex2255 80808Hex2255 85808Hex2255 90808Hex2255 95808Hex2255 100808Hex2255