Data Sheet
Magnetic Rules
Magnetic Rules:
Date: 18-11-2010
Conform to EEC-Class 1, Ref 73/362/EEC
Manufactured from high quality steel
Fully hardened and tempered
Non-glare satin chrome finish
Graduations etched from precise glass masters for
repeated accuracy
Magnetism is provided by a series of button magnets
inserted along the length of the rule
Suitable for use on machine beds and slides, sheet
metalwork and construction projects
Manufacturers
Code
262-006MG
262-012MG
262-024MG
Length
150mm / 6”
300mm / 12”
600mm / 24”
Width and
Thickness
19 x 1mm
25 x 1mm
29 x 1mm
Rule Marking
Front Face (inch)
64ths and 32nds
64ths and 32nds
64ths and 32nds
Rule Marking
Reverse Face Metric)
1.0mm and 0.5mm
1.0mm and 0.5mm
1.0mm and 0.5mm
Button
Magnets
2
3
5
EEC Directive 73-362 / EEC: Rules Class 1 and 2
For Metric Scales Only: (there is no specification for Inch Scales)
Permissible Errors: For EEC Class 1 Rules
Maximum permissible error between 2 intervals upto 1mm = 0.1mm
Maximum permissible error between two intervals not exceeding 10mm = 0.2mm
From Rule End: Above tolerance increased by 0.1mm
Examples:
Rule End to 1mm graduation = Normal Tol. 0.1mm + Additional Tol. 0.1mm = 0.2mm
Rule End to 10mm graduation = Normal Tol. 0.2mm + Additional Tol. 0.1mm = 0.3mm
Overall Length Tolerance
Tol = [a + (b x L)]
a = 0.1 for class 1
b = 0.1 for class 1
L = Length of scale rounded up to the nearest metre
Example for a 300mm rule, when measurement is taken from the 10mm graduation to the 300mm graduation:
Tol = [0.1 +( 0.1 x 1)] = 0.2mm
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