... can be used with reciprocating pneumatic tool and pneumatic grinder, high quality Diamond Flat File used in MachineMain features: The product can be used ... 150 # 200 # 300 # 400 # ,3 * 70 * 25,12pcs/ packFine Diamond flat file, with the tool can be used on the parts fast ... polishing. Suitable for reciprocating pneumatic tools or electric reciprocating line. high quality Diamond Flat File used to grind