Control fastening bracket

90°fixed

Simple 90 degree bevelled square rulers may be offered in any size, and are manufactured by the following specifications: • Rectification and whetstone honing on stainless steel measuring surfaces; • Honing of control edge. • Simple 90 degree square rulers may be offered in any size, and are manufactured by the following specifications: • Rectification and damask treatment on standard steel measuring surfaces; • Rectification and whetstone honing on stainless steel measuring surfaces; • Simple 120 e 135 degree square rulers are manufactured by the following specifications: • Rectification and damask treatment on standard steel measuring surfaces; • Rectification and whetstone honing on stainless steel measuring surfaces; • F.lli Rotondi’s Heel square rulers are manufactured by the following specifications: • Rectification and damask treatment on standard steel measuring surfaces; • Rectification and whetstone honing on stainless steel measuring surfaces; • They can be manufactured in 90, 120 e 135 degree models. • Absolute Black Granite square rulers are perfectly polished and honed on measuring surfaces and rectified on side surfaces. • Their main specifications are as follows: • specific weight: 3 Kg/dm³ • thermal dilation ratio: 6×10^-6 / °C • hardness: ≈ 90 Shore • elasticity module: E = 8×10^3 Kg/mm² • Complete rust resistance • structural stability guaranteed by millennia of aging