... used in various modes, length, head types, tooth types of screw. 2 Power consumption is 60% of SAS series. 1, ... drill tip into the guide, then slide along, the screw will be pulled out.2,Energy saving, power consumption is ... used in various modes, length, head types, tooth types of screw. ModelsFk-514Fk-517Fk-520Fk-523Fk-526Fk-530Fk-540suitablescrenws(mm)Φ1 ... 2.0 Φ2.3 Φ2.6 Φ3.0Φ4.0 Automatic screw Feeder