Lytool Adjustable Countersink Drill Bit Set with Depth Stop, 5 Sizes (2.5–3.5mm), Tungsten Carbide

Overview

Elevate your woodworking with the Lytool Adjustable Countersink Drill Bit Set. Built for clean, accurate screw seating, this kit uses depth stop collars to control how deep each countersink goes. The result is a consistent surface ready for fasteners in cabinetry, furniture making, and joinery projects, with less guesswork and more repeatable results.

Each counterbore is crafted with a tungsten carbide cutting edge and a polished steel body. The cutters stay sharp longer and resist burrs, while the spiral pilot drills efficiently evacuate chips for smoother drilling in natural wood, engineered woods, and plastics. The combination of fully ground edges and a stable, balanced shank translates to steady performance even on longer drilling tasks.

What’s in the Kit

• Spare pilot bits for ongoing projects
• PH1 and PH2 screwdriver bits for quick bit swaps
• 1/4" extension rod to reach deeper recesses
• Depth collars that lock in your chosen countersink depth
• A compact storage box to keep everything organized

Key Benefits and Use Cases

• Universal 1/4" hex shank fits most cordless drills, electric drills, and drill presses for fast changes
• Precise countersinking helps screws sit flush and evenly in softwood, hardwood, MDF, plywood, and plastics
• Depth stop collars enable repeatable drilling depth across multiple pieces, reducing guesswork in assemblies
• The tungsten carbide edge stays sharper longer, enabling cleaner cuts and fewer burrs

Applications and Limits

Ideal for cabinetry, furniture assembly, and general woodworking where clean seating and consistent depths matter. Not suitable for metal, concrete, glass, or drywall.

How to Use

Choose a size (2.5, 2.8, 3.0, 3.2, or 3.5 mm), set the depth collar to your desired depth, and gradually drill. Pair with the included extension rod for deeper work and switch bits as needed with the quick-change 1/4'' hex shank.