For cutting composite pipes with diameters from 12.0 to 25.0 mm and for cutting flexible protective tubes with a diameter of 18.0 - 35.0 mm without damaging a potentially pipe inside. A calibration arbor can be fitted, for example for Geberit composite pipes with 11.5 and 15.0 mm dia.. Tool body: high-grade chrome vanadium electric steel, oil-hardened. Blades: special tool steel, oil-hardened, interchangeable.