{"title":"Digital Vernier Callipers - 150mm, Four-Way Measurement","handle":"digital-vernier-callipers-150mm-four-way-measurement","url":"/products/digital-vernier-callipers-150mm-four-way-measurement","description":"A set of digital callipers that will not break the bank when you need thirty of them. Made from a carbon fibre composite rather than steel, so they are light in the hand, will not rust, and survive being dropped on a workshop floor rather better than you would expect.\n\nThese read out on an LCD instead of a traditional vernier scale, which removes the most common source of student error: misreading the sliding scale. You still get all four classic measurements.\n\nFour measurements, one tool\n\nOutside diameter using the lower jaws, for shaft and stock sizes\nInside diameter using the upper jaws, for bores and holes\nDepth using the tail rod\nStep using the back of the slide\n\n\nZero the display at any position along the beam. That makes comparative measurement straightforward: set zero on your reference, then read the difference directly instead of subtracting two numbers.\n\nSpecifications\n\nMeasuring range: 0 to 150mm / 0 to 6 inch\nResolution: 0.1mm / 0.01 inch\nBody: carbon fibre composite\nDisplay: LCD, 40 × 15mm\nPower: one cell battery, included (LR44 / SR44 or CR2032)\nMetric and imperial, switchable\n\n\nA note for teachers\nResolution here is 0.1mm, not 0.01mm. That is the right call for most classroom work and it is what keeps these affordable as a class set, but it is worth knowing before you build an assessment task around a tighter tolerance. If students need to measure to a hundredth of a millimetre, you want a metal micrometer instead.","vendor":"Little Bird","product_type":"Callipers","in_stock":true,"options":[],"variants":[{"id":16574,"title":"Default Title","sku":"LB-HR0309-27","price":14.2,"on_sale":false,"in_stock":true,"available_quantity":200,"option1":"Default Title"}]}