Utoolmart 70mm Forstner Drill Bit with Hex Shank | Cemented Carbide Woodworking Hole Saw Cutter

• Specifications — Drilling diameter: 70mm / 2.76-inch; Total length: 80mm / 3.15-inch; Shank diameter: 9mm / 0.35-inch. Hex shank, cemented carbide cutter and high-quality carbon structural steel (45# steel) body.
• Features — Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation.
• Application — Suitable for drilling holes in low-hardness woods such as density boards, pressed boards, plastics, and hard woods.
• Application Range — Suitable for bench drill, vertical drilling machine, hand held electric drill, impact drill, CNC carving machine and other drill press.
• Warm Tips — Can not be used for cutting metal holes. Before drilling, be sure no nails or other metal objects in wood to avoid causing damage to forstner drill bits.

• Secure the Bit — Insert the 9mm hex shank of the Utoolmart Forstner drill bit firmly into your drill's chuck. Ensure it is securely clamped to prevent slippage during operation. Confirm the drill is set to the correct rotation mode (usually not hammer mode for wood).
• Position and Drill — Position the bit vertically on your workpiece. Wait a moment for stability, then begin drilling slowly. Maintain consistent pressure and a vertical angle throughout the drilling process for a clean, flat-bottomed hole.
• Clear Debris and Finish — After drilling through the workpiece, withdraw the bit while it's still rotating to help clear sawdust. If chip buildup occurs, stop, clean the debris, and then continue. Apply rust oil to the bit after use to prevent corrosion and extend its service life.

Typical situations where Utoolmart 70mm Forstner Drill Bit with Hex Shank | Cemented Carbide Woodworking Hole Saw Cutter helps — illustrative scenarios, not customer reviews.