RIPstick 
The DWS RIPstick is a drilling optimization tool which autonomously mitigates downhole torque and WOB spikes through a novel and fully mechanical design, ultimately yielding the best anti-stall and anti-stickslip tool on the market.
Optimize drilling performance and increase ROP by providing consistent weight and torsional transfer from the rotary to the bit.
Features
Increases ROP by providing consistent weight and torsional transfer from the rotary to the bit
Minimizes bit wear and damages
Minimizes RSS damages and increases RSS reliability by reducing HFTO (High Frequency Torsional Oscillations)
Fully Mechanical Robust Design allows for a wide range of operating parameters to accommodate any drilling application
Proprietary Rotational Glide System (RGS) enables the DWS RIPstick to be the most adaptive and responsive anti-stall and anti-stickslip tool on the market