Utoolmart Countersink Drill Bit Set, Quick Change Drill Bit with One Hex Key, Adjustable Carpentry Reamer Plated for Wood DIY, 4 Pack 3, 4，5, 6mm

Description Utoolmart Countersink Drill Bit Set, Quick Change Drill Bit with One Hex KeyTechnical ParametersProduct Name: Woodworking taper drillScrew Size: 3mm / 0.12- inch, 4mm / 0.16-inch, 5mm / 0.2-inch, 6mm/0.24-inchMaterial: High Carbon SteelProduct Feature1.

In one step, you can drill, countersink and counter bore the pilot holes for screw sizes 3mm / 0.12- inch, 4mm / 0.16-inch, 5mm / 0.2-inch, 6mm/0.24-inch.2.

Universal 1/4-inch hex shank locking system prevents slipping.

Ideal for dowel buttons.

1/4-inch hex shank can be used with power drills and quick-change chucks.3.

Three-Pointed design can quickly and accurately drill a smooth hole.

Three-edged chamfer design will fast discharge chips from the hole on both sides automatically.4.

The Countersink Drill Bit Set is includes 1 piece of hex key and 4 pieces of countersink drill bit in 4 different sizes to satisfy all you demand.