Archives for November2012

Quick Review: Black & Decker BDCS40G 4-Volt Max Gyro Screwdriver

Black & Decker BDCS40G 4-Volt Max Gyro Screwdriver

Black & Decker BDCS40G 4-Volt Max Gyro Screwdriver

The BDCS40G is Best For:

This tool is suitable for DIY use

Rating: 3.5/5



Several years ago, Black & Decker aimed to tackle the everyday DIY market with its 7.2 Volt VPX line. While the VPX line wasn’t successful and was discontinued a couple of years ago, it did have a very capable compact sized driver the Black & Decker VPX1101X, which offered two speed ranges, and a very capable 140 in/lbs. of torque at 625 RPM. Now while this doesn’t seem like much in today’s world of portable drivers, the VPX1101X was a very inexpensive purchase at the time, and offered interchangeable batteries with other tools in the VPX line.

The Gyro, is something completely different.The 4-Volt Max Gyro screwdriver which is smaller than its VPX counterpart is meant for the occasional light use around the house as a replacement for a standard screwdriver. It’s ergonomically designed to fit in the palm of your hand, and has several unique features that the other small portable drivers do not have.

BDCS40G Features

The first thing you will notice after unpacking the drill is the unique ergonomic design, that’s meant to fit in the palm of your hand. The part of the drill that actually goes against your palm features a large trigger on the squeeze grip, which, when depressed will activate your drill. One of the most unique features about this drill is it’s unique gyro-scoping technology. With the trigger pressed, physically turning the drill in either direction will activate it. The sensor inside, will control the variable speed motor based on the tilt of the drill. It will work in either horizontal, or vertical applications. The 4V non-replaceable internal battery can hold charge for up to 18 months. You can charge the unit by plugging it into the wall via the supplied cable. When being used continuously, depending on application, you’ll get about 2 hours of battery life out of it. The drill also features a LED light to illuminate your work space.

Good for really light use

The gyro-scoping technology takes a bit of getting used to, but once you get the hang of it, the drill really excels at small and light DIY jobs or hobby work. With only 35 in/lbs of torque at 180RPM, it’s only capable of working with small screws. Perfect for removing that electrical plate, or taking apart and fixing your kids toys (assuming it doesn’t have a triangular head)


The 4-Volt Max Gyro Screwdriver is good for occasional use, but takes some time to get used to. We prefer the traditional compact power screwdrivers with non-gyro-scoping functionality, which we feel in this case, is more of a gimmick than actual advancement in power tool technology.

What’s Included in the Box?

  • BDCS40G drill
  • Charger
  • Two 1” screwdriving bits


  • Compact
  • Ergonomic
  • Holds charge long when not used


  • Low torque
  • Internal Non-Replaceable Battery


  • Might take time to get used to gyro-scoping technology
  • Heavy use will mean long charge time


  • Battery: Lithium Ion 4V Internal
  • Speed: One Speed / 180RPM
  • Torque: 35 in/lbs
  • Warranty: Two Year Limited