Juego cuadrado de prueba de regla de ángulo recto de combinación ajustable de ingenieros de 12 pulgadas 300 mm

When you want to move your handle, first loosen the nut and pull it down, let the handle loosen with the ruler. Colour: Sliver. For a 90 degree Angle between the ruler and the handle, after the upper plane of handle and the ruler are parallel, tighten the nut.

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