Walmart Is Selling a 'Powerful' Cordless Impact Wrench for Just $41

Right now, Walmart is having a sale on the Untimaty Cordless Impact Wrench that you can add to your cart for just $41. At 41% ...

Oilfield giants pivot to booming AI infrastructure as drilling demand wanes

Oilfield services giants SLB , Halliburton and Baker Hughes are turning to data centers and related artificial intelligence ...

DeWalt Vs Mellif 20V Impact Driver: How Does The Budget Clone Compare?

When you look at the DeWalt and Mellif 20V impact drivers side-by-side, they are almost identical. However, there are key ...
IEEE

Impact Dynamics Prediction of a Rotary-Percussive Ultrasonic Drill With a Free Mass

Abstract: The rotary-percussive ultrasonic drill (RPUD) employs vibrations on two sides of a piezoelectric stack to drive a drill tool to achieve simultaneous rotary-percussive motion. It has the ...