Stainless Steel Rulers >Rulers > Metric & English [Model 301]
Metric & English Ruler
SKU: Model-301
FRONT SIDE: Top edge 1/2 mm, mm. Bottom edge 1/16ths, 1/32nds, 1/64ths..
REVERSE SIDE: Conversion Table inches to mm
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MATERIAL:
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FINISH:
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THICKNESS:
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FEATURES:
Kristeel Rulers are made from Imported Stainless steel. Each rulers’ graduations are permanently etched and filled black ink. Each Rule is grounded on both edges and maintained parallelism / straightness. Each Rules Zero edge is ground. Each Rule is checked in process and final in QA by LMSD measuring device.
Each Rule is packed in PVC pouch.
SPECIFICATION:
| Model No. | Length | Width | Thickness |
| 301 A 5 | 150mm/6 in | 15mm | 0.5mm |
| 301 C 5 | 300mm/12 in | 25mm | 0.5mm |
| 301 C 8 | 300mm/12 in | 25mm | 0.8mm |
| 301 C 10 | 300mm/12 in | 25mm | 1.0mm |
| 301 E 10 | 600mm/24 in | 30mm | 1.0mm |
| 301 E 12 | 600mm/24 in | 30mm | 1.2mm |
KRISTEEL Make rulers graduated length tolerances +/- mm
| SCALE SIZE mm | EEC CLASS-I | EEC CLASS-II | EEC CLASS-III | BRITISH STD. | DIN STD. | EUROPEAN STD. | IS:2102 (MED) STD. |
| 150 | 0.2 | 0.5 | 1 | 0.1 | 0.4 | 0.25 | 0.5 |
| 300 | 0.2 | 0.5 | 1 | 0.1 | 0.4 | 0.25 | 0.5 |
| 500 | 0.2 | 0.5 | 1 | 0.2 | 0.58 | 0.4 | 0.8 |
| 1000 | 0.2 | 0.5 | 1 | 0.25 | 0.8 | 0.5 | 0.8 |
| 1500 | 0.3 | 0.7 | 1.4 | 0.3 | 1 | 0.6 | 1.2 |
| 2000 | 0.3 | 0.7 | 1.4 | 0.4 | 1.2 | 0.7 | 1.2 |
| 3000 | 0.4 | 0.9 | 1.8 | – | – | 0.9 | 2 |
For EEC std tolerance formula= (a + b L)
L is the length in question rounded up to the next whole meter above. a & b are co-efficient fixed for each class of Accuracy as per below table
| Class | a | b |
| I | 0.1 | 0.1 |
| II | 0.3 | 0.2 |
| III | 0.6 | 0.4 |
