Home / Ducting / Ductmaster Thermal - Rectangular / Cutting Aid Cutting Aid £2.71 – £3.31 DUCTMASTER THERMAL cutting aid. Available in 2 models. Model Choose an option204x60mm Ductmaster Thermal Cutting AidØ125mm Ductmaster Thermal Cutting Aid Clear Cutting Aid quantity Add to basket SKU: NTD-204-CUTTINGAID Categories: Ducting, Ductmaster Thermal - Rectangular Tag: Cutting Aid Product ID: 10536