Our straight grinder is designed for the use with flat grinding disks when heavy-duty fabrication is required on steel and castings and for the deburring of welding-, casting-, and ridge-seams. It can also be used with steel brushes for the removal of rust, the descaling of rolled steel and forgings. When grinding with a grinding disk, or when using these tools iwth brushes, it is necessary to only operate this tool with safety guards.The integrated speed regulator keeps the speed nearly constant and also reduces the air consumption.We are able to set a speeds within the range of 2 800 to 5 000 min-1. Double torque capability compared to the Model PBO 150MX. Due to a special gearing the Model GS does not loose power during high load as do the Models PBO.