Bosch PS40-2A Review

Bosch PS40-2A Cordless Drill

Bosch PS40-2A Cordless DrillBosch
 81 BCBACCPrice

Bosch PS40-2A Strengths & Weaknesses:

Design Acceptable Design - While this driver has one or more design features that received a C rating, it can still be a good choice if that area is not critical to your particular needs.
Power Below Average Power - Delivers up to 800 in-lbs of torque, about 18% less than the class average. Power can sometimes be traded for weight or cost.
Speed Below Average Speed - Generates up to 1800 RPM, about 27% slower than the average impact driver. The Bosch PS40-2A ranks in the bottom 1% of its class for speed.
WeightLight-Weight - Weighs only 2.2 lbs, about 24% lighter than the average impact driver. Ranks in the top 16% of its class for being light-weight.
Battery Below Average Run-Time - Battery endurance is adequate for many work applications, but is 26% less than the class average. Uses Li-ion batteries with a charge rating of 1.3 Ah.
ImpactHigh Impact Rate - Delivers up to 3000 IPM of blows, about 2% higher than the average impact driver. Ranks in the top 41% of its class for impact rate.
User ReviewsHighly Satisfied Users - Rated 4.7 of 5 stars by 29 users. Most owners are very satisfied with the performance and value of this impact driver and would recommend it to others.
Power RatioHigh Power-to-Weight - Ranks in the top 50% of its class for power-to-weight ratio, about 4% higher than average. Higher power-to-weight indicates an efficient design.
GearboxAll-Metal Gearbox - Transmission gears spin at high RPMs and are susceptible to material break-down. An all-metal gear-box provides superior ruggedness and durability.
Motor Brushes No External Access - The motor brushes can only be accessed internally by taking the driver apart. While not a common problem, external access makes the replacement job much easier.
WarrantyLonger Warranty - Backed by Bosch's limited 3-year warranty. This provides extra protection against potential design defects or premature part failure.
ChargerQuick Charge - The Bosch PS40-2A includes a battery charger that will recharge a battery in only 30 minutes. Long charge times are a common complaint with some drivers.
Belt Hook No Belt Hook - Does not include this convenient feature that frees-up both your hands to perform other tasks in-between driving.
Work LightWork Light - Contains an integrated LED work light that illuminates your work area and allows you to clearly see your driving position and progress.
Fuel Gauge No Fuel Gauge - Does not come equipped with a handy battery charge indicator that allows you to glance at your driver and check the battery life while you're working.

Bosch PS40-2A Cordless Drill

Bosch PS40-2A User Reviews Highlights

  • The PS40 simply needs a battery swap after about 30 lags - which brings me to my 4 star rating (instead of FIVE).

  • Mostly I use this for around the house and garage and light to medium building of things. And for that it's perfect.

  • Very powerful Impact Drill, gets the job done very quickly!

  • Works well at slow speeds (reducing stripping of screw heads), has good power for driving, and the light is perfect for my middle-aged eyes!

  • It's an awesome tool to use for working on vehicles/engines. Buy this impact driver a 1/4 socket adapter, a 1/4 universal joint, a 2 inch socket extension and a 6 inch socket extension.

  • I have already used it a few times and it sunk a few long tapcons into some cinder blocks without losing charge. I recommend!

  • Over all, this is a very solid little beastie that has done some impressively impactful driving.

  • I've used this to run a variety of screws, 1 inch to 3 inch, into studs and 2X4s and PTL. It has driven them all without a hitch.

  • Comfortable to use, the 12-volt lithium system performs extremely well and I usually opt for it over my DeWalt 18-volt monster which is quite heavy.

  • It has surprising power and what I like the best is its compact size.

  • Great impact driver drill, lots of power, light weight & compact, comes with everything you need to get the job done with great results!

Bosch PS40-2A Specifications & Features:

Size & Weight 
Weight:2.2 lbs
Length:6-1/2 in
Max Torque:800 in-lbs
Max Power: 
Impact Rate:0-3000 BPM
No-Load Speed:0-1800 RPM
Motor, Gearbox, & Clutch 
Voltage:12V Max volts
Speed Capability:1-speed
Variable Speed:Yes
All-Metal Gearbox:Yes
Auto-Shift Transmission:No
Clutch Settings:N/A
External Motor Brush Access:No
Size:1/4 in
Spindle Lock:Yes
Battery & Charger 
Batteries Included:2 x 12V Max
Cell Type:Li-ion
Charge Rating:1.3 Ah
Charging Time:30 min
Additional Features 
Belt Hook:No
Work Light:Yes
Side Handle:No
Fuel Gauge:No
Warranty:3 Year Limited

Go to Cordless Drill Reviews from Bosch PS40-2A Review

Go to Best Impact Driver from PS40-2A Review