An SDS drill uses a spring-loaded chuck system that lets the bit slide back and forth independently of the rotation, delivering far more impact energy into concrete and masonry. A regular drill simply spins and grips — perfect for wood, metal, drywall, and driving screws, but underpowered for hard masonry. Pick the wrong tool and …
SDS-Plus and SDS-Max are two different rotary hammer chuck systems. SDS-Plus uses a 10mm shank and delivers up to 5 joules of impact energy — ideal for DIY, home improvement, and light commercial masonry. SDS-Max uses an 18mm shank and delivers 5–20+ joules — built for heavy construction, large core drilling, and sustained professional use. …
An 18V drill and a 20V drill are essentially the same thing — the difference is how manufacturers measure battery voltage. Both read 18 volts under load (nominal voltage). The “20V MAX” label used by DeWalt and other brands refers to the fully charged open-circuit peak voltage of the battery, not the working voltage. You …
Corded drills give you unlimited runtime and consistent power at the cost of mobility. Cordless drills let you work anywhere with no cord in the way, but you’re limited by battery charge and available voltage. For most homeowners doing weekend projects, a cordless 20V drill is the right choice. For contractors drilling all day through …
A drill driver is a multi-purpose tool built for drilling holes and driving screws with precision control. An impact driver uses concussive rotational force to drive fasteners quickly with high torque and minimal wrist strain. For most homeowners, a drill driver handles everyday tasks, but an impact driver is faster and easier on your body …
Drill bits come in four sizing systems: fractional inch, metric, wire gauge (number), and letter. Most homeowners only ever use fractional inch bits — sizes like 1/8″, 1/4″, 3/8″ — but knowing how the other systems work helps you read charts, match pilot holes to fasteners, and buy the right bit the first time. This …
Milwaukee, DeWalt, and Makita are the three most popular cordless drill brands in the US market, and all three make excellent tools. The honest answer is: the right brand is the one whose battery platform you’re already in — or the one with the best drill for your specific job at your price point. This …
A brushless impact driver uses electronic sensors and a circuit board to control the motor instead of carbon brushes that physically contact a spinning commutator. The result is a tool that runs cooler, lasts longer between charges, produces more torque for its size, and has no wearing parts that need periodic replacement. For anyone who …
A lithium-ion battery pack for a cordless drill typically costs $40–$100 to replace and lasts 3–5 years under normal use. The difference between a battery that dies after 18 months and one that’s still going strong at 5 years comes down to how you charge it, store it, and use it. None of the tips …
Most drill failures have simple causes: dead or disconnected battery, tripped thermal cutoff, stuck reverse switch, or a faulty trigger. Before assuming the worst, work through this guide systematically — the majority of “dead” drills can be fixed in under 10 minutes without any special tools or parts. This guide covers cordless drills, but many …