Features:
Premium Material: Crafted from high-speed steel (HSS), these bits offer exceptional durability and can effortlessly tackle wood and metal surfaces with precision and ease.
Clean Countersink Holes: The precision-ground 5 flutes and cutting edges for a smooth and clean finish, reducing the need for additional sanding or finishing work.
Save Time and Effort: With 5 flute design, countersink drill bits ensure efficient debris removal, resulting in smoother and cleaner countersinking（ensuring screws and fasteners sit flush), saving time and effort during your projects.
How to operate:
1.First, drill a suitable pilot hole for your screw with a drill bit (countersink drill bits cannot be used directly for drilling).
2.Install the countersink drill bit on the workbench for countersinking (please maintain concentricity, 90°, during the countersinking process).
3. After countersinking, the hole will have a chamfered edge.
4.Screw the flathead screw into the hole to achieve a perfect smooth surface, or you can perfectly hide the flathead screw in the wooden product.
Notes:
1.During the countersinking process, maintain 90° and do not swing it.
2. When using a hand drill, please keep drilling at 90° and apply a little pressure