The Knipex KPX973301 are crimping pliers with round magazine and 3 interchangeable profiles, allows the profesional electrician to quickly swith between crimping applications and carry only one set of pliers. The KPX973301 have been factory calibrated for accurate and reliable crimping of Non-insulated open plug connectors (4.8 + 6.3 mm width) from 0.5 - 6.0mm Insulated terminals + plug connectors from 0.5 - 6.0mm End sleeves (ferrules) from 0.25 - 6.0mm