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Bosch PS40-2 10.8V Impact Driver | List Price: $357.00
Discount Price: $143.99
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Brand: Bosch
Binding: Tools & Hardware
Features: - Powerful Hammer and Anvil System [feature] Produces 800 in/lbs of torque [benefit]
- High Performance Motor and All Metal Gears [features] Deliver 1,800 RPM and 3,000 BPM for fast fastening
- Compact and Lightweight [feature] Only 6/12 in length, just 2.2 lbs
- Hex Quick Change Chuck [feature] Instantly change from drill bits to driving bits
- Bright LED Work Light [feature] Three LED lights in the front end of the tool for optimum lighting
Excellent tool and great value [Posted on 2008-03-28]
This is the best power tool I have had so far. High quality workmanship - it is a pleasure to hold it in your hands. Very powerful. I have never used impact drivers before. This was a real eye opener. I used to use large corded drill to drive large screws. This does better job: (a) breaks less screws (b) drives them better by not breaking the thread in material (c) unscrews them better. The battery lasts long and charges very fast. I love how I can finally have the tool on the belt as it is so small. I also love the built-in light - works miracles in dark places!
I only wish this could also be used as a drill driver as I don't want to have two almost identical tools - one for screw driving and other for drilling. Why not have a switch on one tool to do both jobs?
Nice toy but not so nice for larger screws [Posted on 2008-04-01]
After much lamenting between the Bosch PS40 and the new Makita BTD142HW 18V 1.5 amp hour Li-ion Compact Impact Driver, I decided to give the Bosch a try first. I have other Bosch tools and the build quality is great. The tool is well balanced and the light works well. Unfortunately it just didn't have enough power or speed for 2 1/2" deck screws into pressure treated compared to even my 12V standard Ni-Cd Ridgid. Way to slow once the impact action started. Perhaps I'm another victim of you either get a powerful one or a weak one. Took it back and bought the Makita today. The unit is only a fraction heavier but much more power and speed. It buries screws with ease and is very very fast. I like the chuck better too. For the homeowner or electrician I think the Bosch is a great tool; beyond that I'm not convinced.
A big disappointment - too weak to be useful [Posted on 2008-04-06]
Although the design and construction of the PS40 is very good, mine did not produce much torque. Bosch claims 800 in-lbs of torque, but I doubt it. For example, I attached a 1/2" socket and tried to remove a 5/16" machine bolt. The PS40 couldn't do it - not enough torque. I then used a hand wrench to remove the bolt, and it only required a moderate amount of effort to do so. My old Milwaukee impact driver had no problem removing bolts of that size. As another test I held the socket with my hand as I pulled the trigger all the way back. I was easily able to prevent the socket from turning. And this was with a fully charged battery.
It might be good for hobby use, but not in an industrial setting. I returned mine to Amazon for a refund.
Good in certain applications [Posted on 2008-04-17]
I purchased this driver to help me in my work as an electrician. It's a well designed very compact tool, but won't replace my drill.
First, the features. It's so small! It gets into places my 18 volt drill only dreams about and with the LED lights is very practical. The quality of build is apparent, and I like the balance of weight when it's in your hand. The handle is also well shaped and the direction switch is easily reached with your thumb, something I have to strain for with my 18 volt. The batteries last well although I haven't taken up Bosch on their number of screws driven on a charge claim. But the 30min. charge time seems pretty accurate. It turns at up to 1800 rpm and comes with 2 batteries.
I've tried the tool out on a number of applications. Driving screws into wood, I have found the hammer action begins too soon, on a 1 inch screw the hammer action drives about 3/4 of it. The hammer action also seems to drive in smaller increments, and these two add up to it taking a long time to drive a 1" screw into wood.
I've also tried it out on driving wafer screws into Q-deck. Q-deck is that steel ceiling in warehouse type buildings that is ribbed and wafer screws are about 1/2" and come with and without self-tapping tips. Again the Bosch PS40 begins the hammer action too soon for quickness and I prefer my regular drill for this too.
For my liking, this impact gun works best on steel stud construction, again with wafer screws. Steel studs are a thinner metal than Q-deck and the screws drive in quite rapidly.
The best feature of this gun for me is it's size and weight. There are plenty of times when I'm up a ladder and can just drop the thing in my pouch instead of hauling up my 18 volt drill. It might be slower in some applications, but it is much more convenient to use. And with the hammer action it's also easier to screw without straining against the torque of a conventional drill.
It's also quite handy for removing doors off of panels or any kind of steel box. You can get up to 8 or more screws per cover and with a screwdriver this can take a while. Just be careful when replacing the screws, the hammer action will start to strip the screws if you overtighten.
As a trademan, speed is usually of the essence which is why I refer to it taking too long in some applications. this is not necessarily a fault of the tool, it depends on your priorities. You need to weigh that against the size and ease of use for your needs.
Useful little driver, a must for home owners! [Posted on 2008-04-18]
Got this about a month ago, works well for a small lightweight driver. Drives sheetmetal and sheetrock screws perfectly well, drives nuts and bolts with a socket attachment reasonably well. Even drives lags, but not very quickly. I use it daily as an HVAC installer and find it to be quite handy, you never even notice it in your tool belt. Got my set at Home Depot and it came with the flashlight free, a useful addition - I swear the driver, light, two batteries and charger weight less than my Ridgid 18V impactor with single battery.
I've even used this working on a few cars, removes lots of small fasteners quickly and easily. The built in LEDs are awesome.
I carry it into my house each night to avoid letting it get cold. If you use cordless tools in the cold all day or MUST leave your stuff in the truck overnight, Ni-Cad batteries are where it's at.
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