Depth Adjustable Countersink Drill Bit (4 x 10mm, 5/32" x 25/64") 1PCS

EZEN Depth Adjustable Countersink Drill Bit – Precise, Easy, and Efficient Woodworking Take your woodworking to the next level with the EZEN Adjustable Countersink Drill Bit, designed for both beginners and professionals. Whether you're working on decks, balconies, or custom furniture, this patented tool guarantees perfect hole depth, clean chip emission, and smooth finishes every time.

• Tool-Free Depth Adjustment - Easily adjust the drilling depth using the knurled locking collar—no L-wrench required. Just turn by hand to set your desired depth between 1.2mm and 21mm, providing ultimate convenience on the job.
• Precision Stopper for Repeat Accuracy - The integrated stopper allows you to maintain consistent drilling depth across multiple holes. Ideal for repetitive tasks and uniform screw settings. No more over-sinking or uneven results.
• Scratch-Free Operation with Bearing Stopper - The stopper features a built-in bearing that glides smoothly on the wood surface without leaving scratches or marks—ensuring a clean and professional finish every time.
• Beginner-Friendly, Professional Results - Even first-time users can drill confidently. Once the set depth is reached, the stopper halts further drilling automatically, making it safe and easy to use.
• Quick and Clean Chip Removal - Innovative design provides excellent wood chip ejection, preventing clogging and overheating while helping prolong drill bit life.