Shinwa folding square 1800mm 77840 1 piece

Catalogue number: 77840 Features: ●Angle and gradient scales included. ●Legs are detachable. Applications: ●Laying water lines on the side ●Setting right angles with the center line of the foundation Specifications: ●Nominal dimensions (mm): 1800 ●Angle precision (right angles): ±1000rad (at 1800mm ±1.8mm) ●Scales: Angle 30° to 90°; gradient, return gradient 0 to 9/10 (9 inch gradient); flat gradient 6/10 to 9/10 Materials/Finish: ●Body: Aluminum ●Legs: Aluminum, stainless steel Caution: ●Do not subject to strong impact such as dropping.