Wind-grinding Pen Set, Pneumatic Micro-grinding Machine Industrial Grade Hand Tool ,Long Service Life

No-load speed: 54000rpm (rpm) Air inlet size: 1/4 (inch) Working pressure: 90psi Chuck size: 2.8mm/3.0mm Related Products: pneumatic tools,butterfly mini wind puller,pneumatic screwdriver,pneumatic engraving machinepneumatic crimping pliers,pneumatic rust remover,pneumatic belt machine,pneumatic tapping machine,mini pneumatic shovel,pneumatic engraving pen,pneumatic polishing machine