← 4.1 Measuring and Marking Out Tools
Callipers
Pre-Technical Studies · Grade 7 · about 40 minutes
Use outside and inside callipers to copy a thickness or a hole, then read the span on a steel rule.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Why measuring and marking out matter
- Measuring tools and marking-out tools
- The tape measure
- The steel rule
- Callipers
- The weighing balance
- The stopwatch
- The ammeter
- The voltmeter
- Selecting measuring tools for a task
- The divider
- The try-square
- The marking gauge
- The scriber
- The dot punch
- Pencil and marking knife
- Using tools to mark out a task
- Caring for measuring and marking-out tools