... reciprocating pneumatic tool and pneumatic grinder, high quality Diamond Flat File used in MachineMain features: The product can be used with ... reciprocating pneumatic tool and pneumatic grinder, suitable for relatively large area of polished steel, or after the heat treatment process ... # 200 # 300 # 400 # ,3 * 70 * 25,12pcs/ packFine Diamond flat file, with the tool can be used on the parts fast ...