No jams or problems of any kind. The Power Screwdriver is very easy to setup and use. If you're still on the fence, just buy it. Love this Power Screwdriver. Its ergonomics and feel are the best.
SainSmart 101-92-379 Features & Specs
【Motion Control】ES120 contains a planetary gearbox and a high-speed electric motor, with excellent support from the STM32 MCU and 3-axis gyro with motion control enable the user to screw or unscrew just by a thumb slight moment, Press over the sensor in reversal direction(clockwise) to screw down, on the contary direction to screw up
【Portable】Pen shape slim 304 stainless steel housing body with knurling strips design, anti-slip conveinlnient to hold it when using
【Rechargeable】300mAh 10440 rechargeable lithium battery powered with micro USB port can be charged by the laptop, phone power adapter 16X96 OELD screen display the screwdriver working status
【Precision Design】4mm hex chuck compatible with other 4mm hex precision screwdriver bits, comes with PH00 SL2.0 S2 steel magnetic screwdriver bits and portable pouch easy to hand-holding, slim and light as a pen.
【Adjustable Torque】Built-in 25000rmp motor and 1:144 planetary gear box providing 170RPM speed which is power enough for the mobile phone,digital camera or other electronics devices, 5 class torque adjustment just double press the button to selection easy to operation
Batteries Required?: No
Batteries Included?: No
Tool Style: ES120
Battery Type: Lithium Polymer
Build Material: Stainless Steel
Editor's Impressions Of The SainSmart 101-92-379
Tool Motor Power
Screw Torque
Value For Money
Build Quality
Feature Set
SainSmart 101-92-379 Final Thoughts
"Easy to operate."
If you're still on the fence, just buy it. I will not install another deck without it. No jams or problems of any kind. Dials in screw depth nicely and loads easily. I have no problems with it.