The kit is used primarily for viewing and information purposes. No provision is made for conducting exercises or experiments. The largest tool diameter is 16,75mm. The kit is clearly laid out on a plastic tray. The well-structured instructional material enhances the informational value of the collection. It also includes interchangeable guiding pins and a machining specimen with initial countersinking. It includes 12 different countersinks including special types, e.g. a backward countersink tool.
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