Clarke CAT136 Dual Action Random Orbital Sander. Professional 6" Dual Action Random Orbital Sander Air Driven. The random orbit sanding pattern ensures that no single part of the abrasive material travels the same path twice. Due to the random sanding action this tool does not leave swirl marks producing a virtually scratch free finish and is not sensitive to the direction of the wood grain. Air tools are a superb new range of top quality professional tools built for tough daily use in garages. Variable speed actuating trigger Tough reinforced aluminium housing for increased durability. Adjustable air regulator for variable speed power control max air pressure 6.2bar 90PSI. Max Speed 10000rpm Average no load air consumption 5cfm. Air consumption on load (6.2bar) 14cfm Suitable for 150mm diameter sanding disks.