Dual 8-Inch Metal Rulers: This set includes two identical 20cm (8-inch) straight edge ruler with identical precision markings, inch to mm conversion tables are included on the backside of both
Edge-Start Precision Technology: Both metal measuring rulers feature edge-start measurement, ensuring absolute accuracy from the very beginning of the scale
Laser-Engraved Dual Scales: Permanent engraved markings of the metal rulers show both metric (mm) and imperial (1/16-inch) scales that the ruler with inches and centimeters will not wear off through classroom use
Material: The aluminum alloy material of the metal rulers provides rust-proof durability while remaining lightweight for easy portabil
Rounded Edges: All edges and corners of our machinist ruler are smoothly rounded for complete safety in student use
وصف
The metal rulers combine laboratory precision with classroom durability. The aluminum surface resists scratches and corrosion, while the laser-engraved markings maintain permanent visibility. The hanging hole allows for convenient storage, and the rigid construction prevents bending during use