Tension spring fiberglass dogger

The tension spring consists of a core of high-quality glass fibre covered in polypropylene. The glass-fibre rod provides strength and stability when pushing in, at the same time as the polypropylene surface gives very low friction. As the material always strives to be straight, all force is concentrated forwards. The glass-fibre rod is non-conductive. The search spiral’s design with a round brass head and adapted length always works smoothly forwards. Dogger glass-fibre tension springs are supplied in an impact-resistant plastic cassette which facilitates both work and storage. The cassette has internal brackets which lock the tension spring and thereby functions as an effective pulling aid. The tension spring is easily pulled out from the cassette without any problem.