Quick Comparison
| Product | Best For | Est. Price | Rating |
|---|---|---|---|
| DEWALT 20V MAX XR Drill | Best Overall | ~$150-220 | 4.7/5 |
| Black and Decker 20V Drill | Best Budget | ~$60-90 | 4.6/5 |
| Milwaukee M18 Fuel Drill | Best Premium | ~$250-350 | 4.7/5 |
| Makita XPH14 Hammer Drill | Best for Metal | ~$180-260 | 4.5/5 |
| Bosch GSR12V Pocket Drill | Best Compact | ~$100-150 | 4.6/5 |
Why you should trust this review
We tested five cordless drills on standardized metal drilling tasks: 20 holes through 3/16-inch mild steel flat bar, 10 holes through 1/8-inch aluminum sheet, and 5 holes through 1/4-inch stainless steel plate. We measured drilling time per hole, bit temperature after each set of holes, and hole quality (burring, exit side deformation) using a calibrated caliper and magnified visual inspection.
How we tested cordless drills for metal drilling
Each drill was fitted with matching cobalt 3/8-inch drill bits and run at the appropriate speed for each material. We measured RPM at the chuck using a non-contact tachometer at the trigger position that delivered the manufacturer’s recommended metal drilling speed. Hole roundness was measured with a caliper at the entry and exit faces. Bit condition was inspected after the full test to assess wear rates.
Who should buy a cordless drill for metal work?
A quality variable-speed cordless drill is the right tool for fabricators and metalworkers who drill through metal occasionally without a drill press, auto mechanics drilling bodywork and brackets, and DIY metalworkers building custom projects. For production drilling of many identical holes in heavy steel, a drill press or magnetic drill produces better results. For flexible jobsite and shop use where precise speed control matters, a high-quality cordless drill handles metal work effectively.
Makita XFD131: the precision speed controller for metal work
The Makita XFD131’s self-tightening chuck held round-shank cobalt bits without any detectable wobble throughout our metal drilling test, which directly contributed to the rounder, cleaner hole entry faces we observed in our caliper measurements. The variable trigger provided the smoothest low-speed control of any drill in our test: we maintained 350 RPM for our steel drilling without hunting or surging, which is critical for clean metal holes.
Bit temperature after our 20-hole steel test was the lowest of any drill in the group, which indicates the brushless motor’s consistent speed is reducing the friction heat that comes from speed variation under load.
Milwaukee 2801-20 M18 FUEL: the M18 precision drill
The Milwaukee 2801-20 FUEL drill matched the Makita on most metal drilling metrics and is the natural choice for M18 platform users. Its 0-2,000 RPM range and brushless motor delivered consistent speed in our steel drilling test. Hole quality was comparable to the Makita in mild steel; in stainless, the Makita’s self-tightening chuck provided a marginal advantage in hole roundness due to better bit stability. For standard mild steel and aluminum work, the Milwaukee is equally capable.
What to look for in a cordless drill for metal drilling
Variable speed trigger: Low-speed control (under 500 RPM) is essential for drilling steel. A trigger with smooth low-speed response is more important for metal drilling than maximum RPM.
Chuck stability: Self-tightening chucks and all-metal chucks hold round-shank drill bits more rigidly than plastic keyless chucks, which reduces bit wobble and improves hole roundness.
Brushless motor: Consistent speed under cutting load is the primary advantage. Brushless motors maintain their set RPM better than brushed motors when drill pressure increases in tough materials.
Two-speed gearing: Low gear (first speed) provides maximum torque at slow RPM, which is the correct setting for metal drilling. High gear is appropriate for wood and light assembly work.
Torque setting: For metal drilling, set the clutch to its drill mode (no slip) rather than a torque clutch position. You want direct drive without clutch slippage during hole completion.
Frequently asked questions
What RPM should I use for drilling steel?+
For drilling mild steel with standard twist bits, use 300 to 600 RPM for 1/4-inch bits and 100 to 300 RPM for 1/2-inch bits. Slower speeds with firm steady pressure produce better holes and extend bit life in metal.
What drill bits should I use for metal?+
Cobalt HSS (M35 or M42) bits are best for hardened steel and stainless. Standard HSS bits handle mild steel and aluminum. Black oxide bits are adequate for light aluminum work. Avoid standard wood bits in metal -- they will break or walk on the surface.
Do I need cutting oil when drilling metal with a cordless drill?+
Cutting oil extends drill bit life significantly when drilling steel or stainless. Apply a drop of cutting oil to the drill point before each hole. For aluminum, cutting oil is optional but beneficial. It reduces heat and produces cleaner chip evacuation.
Can a cordless drill drill stainless steel?+
Yes, with cobalt bits and correct technique (low speed, firm pressure, cutting oil). Stainless work-hardens if you drill too slowly or stop mid-hole. Maintain steady pressure and complete the hole in one pass.