STABILA 80T EXTENDING SPIRIT LEVEL 80CM 32"" TO 127CM 50"" High-quality tel Marking and cutting edge along entire length – measure and mark simultaneously, even when extended. Printed metric scale to work out internal dimensions and clearances. LOCK system to fix the spirit level at the length required – prevents inadvertent changes to the set length. Integrated anti-slip stoppers allow for a firm hold when marking – the spirit level does not slip. High-quality extension mechanism ensures high measurement precision – in normal position: retracted ±0.5 mm/m and extended ±1.0 mm/m, in reverse position: retracted ±0.75 mm/m and extended ±1.0 mm/m. Plastic end caps protect the profile against impact. Equipment: 1 horizontal vial, 1 vertical vial, 1 measuring surface, telescopic system, 1 continuous marking and cutting edge, 1 printed metric scale. Measurement accuracy in normal position 0.50 m