Bosch’s new 18V drills, similar to the anti-kickback cordless drills that debuted in Europe, will soon be available in the USA. The new drill/driver (DDH181X) and hammer drill (HDH181X) are built with smart acceleration sensors that will help reduce the risk of harmful reactive torques in bind-up situations.
When an ordinary drill or hammer drill binds up or jams, the tool itself will begin to rotate, sometimes injuring the user’s wrists or arms. Impact damage, where the drill swings up and hits the user or a bystander in the face or body, has been known to happen as well.
With the DDH181X or HDH181X drills, the built-in acceleration sensor can detect the quick rotational reaction forces that develop when a bit or accessory binds. It then sends a signal to the tool’s control circuitry to cut power to the motor. Without power, the drill is safely stopped.
This quick video demo does a great job of showing what the new anti-rotation sensing technology does:
Bosch says that the anti-kickback sensor technology makes the new drills easier to handle, and we also see it as one of the best safety features added to handheld cordless power tools in some time.
A new auxiliary handle (read more about why these drills need aux handles) features 23 positions and a tongue-and-groove locking structure for better control.
Features and Specs
- Torque: 708 in-lbs (DDH181X), 752 in-lbs (HDH181X)
- 2-speed transmission
- 25 clutch settings
- Length: 8-1/4″ (DDH181X), 8.9″ (HDH181X)
- Weight: 1.75 lbs (DDH181X), 5 lbs (HDH181X)
- No-load speed: 0-400/0-1700 RPM (DDH181X), 0-440/0-1850 RPM (HDH181X)
MSRP: Drill/driver – $279, Hammer drill – $299
Both kits will be bundled with (2) 18V 4.0Ah Li-ion battery packs and a charger.
ETA: May 2014
User-friendly safety features, in heavy duty drills that can deliver upwards of 700 in-lbs of torque, that you won’t even know are there until they save your wrists or other body parts from injury? Thumbs up Bosch!
A lot of pros have grown fond of impact drivers and wrenches as substitutes for heavy duty drills, partly because of how they inherently deliver non-reactionary torque. When an impact tool binds, it won’t spin itself or your wrist. But impacts, even with multiple electronic speed and torque settings, aren’t ideal for drilling situations or when you want greater torque control.
Even better, the suggested retail prices of the DDH181X and HDH181X kits are close to the current street prices of the non-anti-kickback 2-battery DDH181 and HDH181 kits, which is pretty good news. In other words, you might get the added safety without any increase in cost!