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Tolerance

Products-Tolerance

Rule thickness Thickness tolerance
pt mm mm inch
1.5 0.53 ±0.015 ±0.0006”
2 0.71 ±0.015 ±0.0006”
3 1.05 ±0.020 ±0.0008”
4 1.42 ±0.020 ±0.0008”
Rule height Height tolerance
mm inch mm inch
22.00~25.40 0.866”~1” ±0.020 ±0.0008”
>25.40~50.80 >1.000”~2” ±0.025 ±0.0010”
Product Tolerances
Height tolerance ±0.020mm
Straightness Max±0.10mm/0.5m length
Camber/Dish ≦0.10% of height
Coil set length: ±5mm/1m length
Coil: ±10mm/1m length
Twist ≦0.5mm/1m length
Allowance for reference:

Straightness

Deviation from a straight line- peak height maximum ±0.10mm in 0.5m lengths.

Camber or dish

Maximum unflatness 0.10% of the height.

Coil set

Deviation from straight line- maximum peak height 5 mm/1m for cut length and 10 mm/1 m for coils.

Twist

Maximum 0.5mm in 1m lengths.


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