DELTA 12-Amp Bench JointerCast iron construction for solid base and smooth operation Cast iron fence and support system Simple fence adjust system with positive stops at 90 and 45 Aluminum cutter head with steel knives Simple jack screw arrangement for easy adjustment and knife changes Aluminum cutterhead with two knives Simple jack screw arrangement offers easy adjustment when changing knives Built in dust blower ejects chips efficiently and virtually eliminates clogged dust