Insulated Bolt Cutters for Working at Height Secure Tools provide a selection of insulated bolt cutters that give you the extra leverage needed when cutting through thick wires safely when working at height. Made of solid steel and available in different sizes to suit the job’s needs, our insulated bolt cutters are manufactured to withstand year after year of hard-wearing use. Moreover, the inclusion of a high-grade insulation composition makes the bolt cutters safe for working on live equipment up to 1000 V. And, each insulated bolt cutter is fitted with a durable open ring attachment point for a fixed place to tether the item and prevent dangerous tool droppages occurring when working from height.