Forstner Drill Bits Tungsten Carbide 15mm 17mm 20mm 23mm 25mm 28mm 30mm 35mm Wood Hole Saw Auger Opener Woodworking Drilling Tool Wood Cutter (23mm)

[SPECIAL DESIGN] Using these sharp drill bits, you can drill accurate, smooth, neat holes without burrs, even in end-grain and through knots. Arc curve design head contributes to removing sawdust faster, making your work more efficient. [MATERIAL] The cutting edge is made of K30 monolithic tungsten carbide, hardness ≥90HRA, bending strength >1900N/cm2, resharpenable for a longer service life. It has the advantages of high hardness, wear resistance, good toughness, heat resistance and corrosion resistance. The shank is made of steel 45#. [SPECIFICATIONS] Drilling dia.: 23mm; shank dia.: 10mm; drilling depth: 54mm; total length: 88mm. [APPLICATIONS] Suitable for cutting holes onto solid wood, softwood, hardwood, plywood, MDF, chipboard, and also plastic, rubber, fiberglass. Can be used in drill press, bench drill, vertical drilling machine, CNC carving machine, etc.. [NOTE] 1. Sharp parts contained, please keep away from children and pets. 2. Can NOT be used for metal processing, or the will drill bits get damaged quickly. 3. Material must be fixed during cutting, and the drill bit should be perpendicular to the material. 4. Set slow drilling speed till the drill bit is completely located, then gradually accelerate speed. 5. Water should be injected when processing hardwood, in order to improve drilling accuracy and quality.