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The New Zealand Railways Magazine, Volume 2, Issue 10 (February 1, 1928)

Tool Making

Tool Making.

It cannot be denied that there is a right tool for every job—that the supply of correctly ground tools can only be maintained by a definite system of tool grinding being insisted upon. The number and variety of tools required in a locomotive machine shop will appear very large where the individual system of tool grinding and designing is in vogue. This is mainly due to the fact that each machine operator has created a standard set of tools of his own. If all these tools were tested and the best tools sorted out and made the workshop standard, one would be amazed at the relatively few tools that are required in the make up of a standard set capable of meeting the majority of workshop requirements. This is what has actually been done in the world's most efficient machine shops. Moreover, to assure that the correct shapes will not be diverted from, specially designed tool grinders have been installed and are operated by a machinist who works from charts that give the correct rake, clearance and profile for every tool required.