ZELCAN Titanium Step Drill Bit Set: High Speed Steel Cone Bits for Sheet Metal Hole Drilling - 10 Sizes from 1/4 to 1-3/8 Inches. Perfect for DIY Enthusiasts and Electricians.
Durable HSS Drill Bit ----- High-speed steel makes it last longer than others, titanium coating ensure easily cut through iron sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean.
Titanium Coating ----- Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance.
Revolutionary Design ----- Tri-flatted shank fits into power tools chuck securely and eliminates slip; two-flute design clears chips faster and allows particles to escape easily.
A Must-Have for Handyman or Professionals ----- Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal).