5PCS HSS Titanium Step Drill Bit Set with Automatic Center Punch

-✅【What you get:】Includes five standard step drill bits with center punch,which can replace 50 individual drill bits, you can process 50 different kinds of diameter holes with the five pieces.

-✅【Product Feature:】The center punch delivers an automatic,high-impact,spring-loaded strike through adjusting the cap; its brass body has a deeply knurled surface for nonslip control; and the carbide tipped bit makes the center punch 10 times stronger than normal one;protective aluminum case makes the drills not easy to dull.

-✅【HSS Titanium Coating:】High speed steel along with titanium coating ensures outstanding durability and sharpness can reduces the friction runs cooler.-✅【Application:】Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal