

⚡ Screw Smarter, Not Harder — Power Meets Precision in Your Palm
The BLACK+DECKER BD40K27-B5 is a compact 4V cordless screwdriver featuring a powerful 5Nm torque motor, advanced E-Clutch torque detection with auto-stop, and a push-to-start mechanism for effortless control. Equipped with 27 accessories including a wire stripper and an LED work light, it’s designed for versatile home and electrical projects. Lightweight and portable, it delivers professional-grade performance with intuitive features tailored for millennial DIYers and managers who value efficiency and precision.







| ASIN | B084G2K4SF |
| ASIN | B084G2K4SF |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #2,359 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Power Screw Guns |
| Color | multi |
| Country of origin | China |
| Customer Reviews | 4.2 4.2 out of 5 stars (126) |
| Customer reviews | 4.2 4.2 out of 5 stars (126) |
| Date First Available | 2 February 2020 |
| Date First Available | 2 February 2020 |
| Included components | Screwdriver |
| Item Package Quantity | 1 |
| Item Weight | 670 g |
| Item model number | BD40K27-B5 |
| Item model number | BD40K27-B5 |
| Manufacturer | BLACK+DECKER |
| Manufacturer | BLACK+DECKER |
| Material | Metal, Plastic |
| Package Dimensions | 20.1 x 11.8 x 5.4 cm; 670 g |
| Package Dimensions | 20.1 x 11.8 x 5.4 cm; 670 g |
| Part number | BD40K27-B5 |
| Power source type | Battery Powered |
| Speed | 320 RPM |
| Style | 3.6 Volts + Screw Bits |
| Torque | 5 Newton Meters |
| 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 👍
H**.
Nice for light duties
س**ف
منتج جيد
O**A
مقبولة
G**9
It good, I recommend for who works on push
A**F
Not working
Trustpilot
4 days ago
2 days ago