Niigata Seiki SK Japanese-made Silver Square Ruler, Yellow Dragon Series, Quick-Dial Scale, Same Scale on Both Sides, Same Thickness, 30cm SDD-30CKD

For measuring dimensions and checking right angles.

This type features a uniform thickness at the corners for easy marking and a perfect fit to the object.

The stepped scale is easy to read, with markings in 1mm increments.

cm scale: Repeating numbers.

The corners are the same thickness for easy marking.

Includes a safety rope attachment hole, ideal for working at heights.

Country of origin: Japan Corner thickness: Uniform Length (end) x Width x Thickness (mm): 320 (160) x 15 x 1.3 Front scale (cm): Long side - Outer 30 Inner 30 (Outer reference), End side - Outer 15 Inner 15 (Outer reference) Back scale (cm): Long side - Outer 30 Inner 30 (Outer reference), End side - Outer 15 Inner 15 (Outer reference) Length tolerance (mm): ±0.2 at 300, Perpendicularity (mm): 0.1 or less per 100 (Side of scale)