The Best Drill Bits for Metal
Ahead, get the details on our top-favorite drill bits designed for use on metal.
Drill bits come in a plethora of types and sizes for drilling holes in a variety of materials. Many drill bits can pierce through more than one type of material, but not all drill bits can be used on metal without heating up and snapping in half. The best drill bits for metal are often made of high-speed steel, cobalt, or carbide and in order to reduce friction, are sometimes finished with such coatings as black oxide or titanium. If you’re in the market for a good set of metal-drilling bits, keep reading! Our top-favorite picks offer durability and precision and excel at this demanding task.
Our Top Picks
BEST OVERALL: Hymnorq Jobber Twist Drill Bits Set
The tapered noses and twisted side grooves of the bits in this set quickly penetrate to drill a steady, self-centering hole in many hard metals, including iron. The bits also work well for drilling in softer metals, such as aluminum and copper. (But they are not suitable for drilling into the hardest metals, such as titanium and high-carbon steel.) Made from cobalt steel (and molybdenum, for added durability), the Hymnorq bits are friction- and heat-resistant. 15 bits are included; these range in size from 1/16-inch to 3/8-inch. All come within a handy plastic storage case.
BEST FOR SOFT METAL: amoolo Titanium Drill Bits
This set of amoolo 1/8″ Titanium Drill Bits comes with 10 1/8-inch titanium-coated bits made from high-speed steel for drilling 1/8-inch holes in softer metals, such as aluminum, copper, and alloy. These drill bits won’t work on iron, stainless steel, and other hardened metals. The twisted side grooves help stabilize the bit during drilling and direct metal shavings up and out of the hole. Additional sets of 10 bits are available in other sizes, including 1/4-inch, 3/8-inch, and 3/16-inch bits. The bits come in a plastic case for easy storage.
BEST FOR HARD METAL: Drill Hulk Cobalt Steel Jobber Length Twist Drill Bits
When you need to drill through hardened metals such as wrought iron or stainless steel, consider this set of jobber-length bits made of cobalt steel. The set comes with 12, 3/16-inch twist drill bits made from high-speed steel combined with cobalt for durable performance and heat resistance. The bit’s tapered split point can penetrate metal quickly and cleanly, and the fluted side grooves will remove metal shavings as you drill. These bits do not come with a storage case.
ALSO CONSIDER: Bosch Black Oxide Metal Drill Bit Set
For easy drilling into light gauge steel, such as aluminum, copper, or alloy, check out the Bosch Black Oxide Metal Drill Bit Set . Manufactured from high-speed steel and coated in black oxide, the Bosch drill bits can withstand friction and heat so you can drill continuously without the bits heating up. The grooves on the sides of the bits’ twisted shanks will bring metal shavings up and out of the hole as you drill, and the bits’ tapered tips can quickly penetrate the metal and balance the bit as you drill to produce a clean, even hole. The set includes 21 bits, ranging in size from 1/16-inch to 1/2-inch, and they come in a handy plastic storage case.