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⚡ Screw smarter, not harder — power and precision in your palm!
The BLACK+DECKER 4V 5Nm Li-Ion Cordless Electric Push & Go Screwdriver BD40K27-B5 combines compact power with smart features like push-to-start activation, an advanced torque-sensing E-Clutch, and an integrated LED work light. Equipped with 27 versatile accessories including a wire stripper, this lightweight tool is perfect for professional-grade household assembly, fastening, and light electrical tasks. Its 4V lithium-ion battery ensures long-lasting performance, while the LED charge indicator keeps you informed, making it a must-have for millennial DIYers who demand efficiency and style.
| ASIN | B084G2K4SF |
| Battery Type | Lithium Ion |
| Best Sellers Rank | #3,045 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Power Screw Guns |
| Brand | BLACK+DECKER |
| Brand Name | BLACK+DECKER |
| Country of Publication | China |
| Customer Reviews | 4.2 out of 5 stars 127 Reviews |
| Included Components | Screwdriver |
| Item Type Name | Electric Screwdriver |
| Item Weight | 0.67 Kilograms |
| Item torque | 5 Newton Meters |
| Manufacturer | BLACK+DECKER |
| Manufacturer Part Number | BD40K27-B5 |
| Manufacturer Warranty Description | 2 years Manufacturer Warranty |
| Material | Metal, Plastic |
| Material Type | Metal, Plastic |
| Maximum Chuck Size | 6 Millimeters |
| Model Number | BD40K27-B5 |
| Number of Batteries | 1 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Recommended Uses For Product | General household tasks, light-duty assembly, minor electrical work |
| Speed | 320 RPM |
| Torque | 5 Newton Meters |
| Unit Count | 1 Piece |
| Voltage | 4 Volts |
A**.
Very powerful and useful for DIY
Can assemble most of home furniture (which is incredible for the size). It failed on some bent bed screws but that's OK. Not for small electronics! Don't use for tightening laptop screws! You can open electronics' screws though. Even the lowest setting is too strong for screws going into plastic/ mobile/ laptop, so stop before fully tightening. E-Clutch does work but engages after 0.5 sec. Unlike mechanical clutch which doesn't move at all after a force, E- Clutch will allow some movement/force before engaging. The power is amazing. At full strength I was easily able to screw/unscrew door hinges and door locks. The bit set is of just-acceptable quality steel. I wish they would have given the basic 6 bits only, but of higher quality. The bits work fine for easy jobs. But at max torque if the screw isn't moving/it's slipping, the bit bends. This shouldn't be a big issue for anyone having any good bit set lying around and for normal DIYers as well if they don't push too hard. Push to start function is really intuitive. Yhe only situation where you miss a button is if you are working with angular attachments. Oh and it takes 1/4" inch hex bits which are quite secure in the slot. All being said, it's a an easy choice to pick over expensive brands. Surpringly it's more powerful than bosch 3 (in my testing). The only two complaints being a missing button and stronger fewer bits, I have nothing but praise for this device.
M**E
Good product
I just hope it is magnetic as the bits keeps on falling while on use.
J**A
Black & Decker Tools
Good quality, worth to buy.
A**.
Nice
Good product
S**E
Best one
I truly recommend this product for usual use
A**R
Must have tool
Very good stuff, handy, light weight. It does what it meant for. Must have tool for DIY
K**D
amazing
Amazing i used for long time and i recommended
K**D
Working very good
Very good quality 👍
Trustpilot
2 months ago
2 weeks ago