A bench type of tool grinding machine with exhaust system GREENDER25 can be mounted on a table, workbench, or movable stand. Original vacuum system allows catching an abrasive dust at least 90%. A high efficiency filter allows using of up to 3 sets of abrasive wheels without changing and flushing. The sludge is removed by using a locksmith brush through a side opening. The machine is used for manual grinding of machine and bench tools (cutters, drills, drill bits, chisels), and for removal of burrs, chamfers, etc. A grinding wheels External diameter, mm 250 Internal diameter, mm 20 Width, mm 25 Maximum circumferential speed, m/s 36 Electric motor Power output, kW 1,1/380 Electric motor of exhaust system Power output, kW 0,12 Rotation frequency, rpm¯¹ 2850 Overall dimensions, mm Length Width Height 525 480 400 Machine weight 48 Operating mode repeatedly short Intermittent Duty- 30