Black+Decker is credited with building the first cordless drill in 1961. NASA was looking for a zero-impact wrench for their Gemini Project that would spin bolts in zero gravity without spinning their astronauts. Black+Decker was contacted to design and develop a drill with these specifications and later designed a cordless rotary hammer drill for the Apollo Moon Program. The tool company began selling their cordless tools to large industrial companies, but it wasn’t until 1978 that Makita started marketing cordless drills to the general public. In 2010, Black+Decker merged with Stanley Works to become Stanley Black & Decker.
As with most power tools, a generic search for cordless drills on Amazon will produce a long list of options to choose from. Consider Amazon’s best customer reviewed drills to find something tailored to your needs.
| Brand | DEWALT |
|---|---|
| Power Source | Battery Powered |
| Max Rotational Speed | 1500 RPM |
| Voltage | 20 Volts |
| Max Chuck Size | 1/2-inch |
| Material | Steel |
| Speed | 1500 RPM |
| Item Weight | 3.64 Pounds |
| Max Power | 300 Watts |
| Item Torque | 530 Inch Pounds |
| Manufacturer | DEWALT |
| Model Number | DCD771C2 |
| Country of Origin | Mexico |
| Batteries | 1 Lithium-Ion battery included |
| Style | Compact Drill/Driver |
| Wattage | 300 watts |
| Special Features | Compact |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium-Ion |
| Warranty Description | 3 Year Limited Warranty |
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| Brand | Milwaukee |
|---|---|
| Power Source | Battery Powered |
| Country of Origin | Vietnam |
| Max Rotational Speed | 2000 RPM |
| Voltage | 18 Volts |
| Amperage | 5 Amps |
| Max Chuck Size | 1/2-inch |
| Item Weight | 6.6 Pounds |
| Max Power | 800 Watts |
| Item Torque | 1200 Inch Pounds |
| Manufacturer | Milwaukee |
| Batteries Included? | Yes |
| Battery Cell Type | Lithium-Ion |
| Warranty | 3 Year Limited Warranty |
| Speed | 1700 RPM |
|---|---|
| Maximum Power | 850 Watts |
| Item Torque | 485 Inch Pounds |
| Manufacturer | Koki Holdings America, Ltd |
| Part Number | DS18DDXM |
| Country of Origin | China |
| Item model number | DS18DDX |
| Batteries | 2 Lithium Ion batteries included |
| Style | Metabo HPT DS18DDX Only |
| Batteries Included? | Yes |
| Battery Cell Type | Lithium Ion |
| Warranty | Lifetime Tool Warranty |
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| Manufacturer | Bosch |
|---|---|
| Power Source | Hand Powered |
| Max Rotational Speed | 1300 RPM |
| Voltage | 12 Volts |
| Max Chuck Size | 3/8-Inch |
| Special Feature | Compact |
| Material | Plastic |
| Item Weight | 2 Pounds |
| Max Power | 850 Watts |
| Item Torque | 930 Inch Pounds |
| Country of Origin | Mexico |
| Model Number | PS41-2A |
| Batteries | 2 Lithium-Ion batteries included |
| Style | Kit with 2 Batteries & Charger |
| Special Features | Compact |
| Batteries Included? | Yes |
| Battery Cell Type | Lithium Ion |
| Warranty | 1 year warranty |
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In a word, torque. A drill uses constant torque, making it ideal for boring holes and driving short fasteners into soft materials. An impact driver senses resistance and automatically modulates torque, making it more effective driving larger fasteners into harder materials.
Hammer drills are usually found as the secondary function on a conventional drill. Cam-action mechanics are implemented in order to convert the rotational force into a linear percussive force on the chuck. Hammer drills are commonly used for boring holes into concrete, masonry, or stone.
Joseph designs and builds in the small home niche. He started out making custom furniture working in the family cabinetry business in New Hampshire at the age of twelve
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