Utoolmart Forstner Drill Bit 100mm (3.94") Hex Shank | Precision Wood Cutter for Softwoods & Plastics

• Specifications — Drilling diameter: 100mm / 3.94-inch; Total length: 80mm / 3.15-inch; Shank diameter: 12mm / 0.47-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 12mm hex shank firmly into your electric drill's chuck or impact driver. Ensure it is securely clamped to prevent slippage during operation. Confirm the drill is set to the appropriate speed and rotation mode for drilling wood.
• Position and Drill — Mark your desired hole location on the wood. Position the Forstner bit vertically against the workpiece. Begin drilling slowly, allowing the bit's pilot to guide it. Maintain consistent pressure and a steady vertical angle throughout the drilling process.
• Clear Debris and Finish — As the bit drills through, periodically withdraw it to clear sawdust and chips. If you notice any abnormality or excessive chip buildup, stop immediately, clean the debris, and then continue. Once the hole is complete, apply rust oil to the bit for maintenance.

Typical situations where Utoolmart Forstner Drill Bit 100mm (3.94") Hex Shank | Precision Wood Cutter for Softwoods & Plastics helps — illustrative scenarios, not customer reviews.