Hacksaw frame developed according to the scientific ERGOTM processProfessional hacksaw frame with unique design Ergonomically designed soft grip handles Solid aluminium frame that allows very high blade tension for straight and accurate cuts Centred blade for balance and precision Quick-change blade tensioning mechanism with blade retaining spring for quick and easy blade change Alternative 55° blade mounting for flush cutting Supplied with the 300 mm (12'') reliable and shatterproof Sandflex(R) bi-metal blade 24 TPI for excellent cutting performance