Mag tools offers magnetic coolant filters [model tap]. The hardware specification of the model tap includes a slotted type powerful magnetic drum accommodated in a thick sheet metal body. For being slotted type the magnetic drum possess a large area of magnetic field. A double reduction worm geared motor operates the drum. A slotted scraper scrapes off the dust arrested by magnetic drum. These magnetic coolant filters can be applied for all types of grinding machines, and is offered in capacities from 100 to 1200 lpm, in single construction.