EFFICERE 8-Piece Silver and Deming Drill Bit Set is your perfect choice for drilling large holes over half inch diameter on wood, plastic, aluminum, copper, cast iron, mild steel, stainless steel, sheet metals and many other types of materials. It serves a wide range of applications such as woodworking, auto repairs, equipment and machinery, metal fabrication and a lot more.

Constructed from premium cobalt high speed steel for dependable strength, these drills bits are built to last. Featuring 135-degree split point at tip, they start cutting with self centering for faster speed and prevent walking during drilling. A superior golden titanium and black nitride dual coating finish is applied to each drill that holds up lubricant better for smoother drilling and is 80% more durable and corrosion resistant than regular black enamel finish. All the tools have a universal 1/2 inch reduced shank with tri-flat end that securely locks onto the 3-jaw chuck from all brands of drill press and power tools.

Product Key Features:

▲ Premium M2 Cobalt High Speed Steel (HSS) Construction for Maximum Strength and Durability.
▲ 135° Split Point for Faster and More Efficient Drilling without Walking.
▲ Twist Blade with Deep Groove Design Quickly Clears Out Chips and Particles.
▲ 1/2-Inch Reduced Shank Fits All Drill Press and Most Power Tools.
▲ Unique Tri-Flatted Shank End Locks Securely onto 3-Jaw Chuck.
▲ Comes with a Handy Aluminum Case for Easy Organizing and Storage in Toolbox and Tool Chest.

Size Included:

▲ 9/16 Inch, 5/8 Inch, 11/16 Inch, 3/4 Inch, 13/16 Inch, 7/8 Inch, 15/16 Inch, 1 Inch