But even some higher-end models are being packaged with rechargeable flashlights and small, cordless circular saws. For cordless drills, power is measured in battery voltage.
Higher voltage means more torque-spinning strength to overcome resistance.
Today's higher-voltage drills have enough power to bore big holes in framing lumber and flooring. That's impressive muscle. But the trade-off for power is weight. The handle base flares to prevent hand slippage and accommodate a battery. Because the battery is centered under the weight and bulk of the motor, a T-handle provides better overall balance, particularly in heavier drills.