The Irwin Extension Rod for Hole Saw Arbors is a 300mm extension accessory designed to extend the reach of Bi-Metal holesaws from 13mm to 300mm diameter. This extension rod enables tradespeople to drill through deeper materials and access hard-to-reach areas where standard arbor lengths would be insufficient. Ideal for electricians and plumbers working in cavity walls, floor joists, or ceiling voids, this extension accessory provides the additional length needed to…