The zeus precision engineers charts and reference tables book is a compact reference guide containing essential technical data for engineers, machinists and toolmakers working in drawing offices, toolrooms and workshops. Published by zeus precision charts ltd, a member of the british standards institution, this metric revision features 28 laminated pages designed to withstand the demanding conditions of workshop environments. The durable laminated construction protects the charts from oil, dirt and general wear, ensuring the data remains legible throughout extended daily use. This comprehensive reference contains critical information including standard drill sizes and decimal equivalents, tapping drills and clearances for both metric and imperial threads, bs4500 tolerances, and hardness comparisons. Additional technical data covers jig boring co-ordinates for equally spaced holes, allowances for sheet metal bending, morse taper specifications, and extensive trigonometric tables including sine, cosine, tangents and cotangents. The pocket-sized format makes this reference book ideal for engineers and precision machinists who need quick access to accurate technical data without returning to a desk or computer. It's particularly valuable for toolmakers working on thread cutting operations, precision drilling work, and anyone requiring instant reference to british standard tolerances and specifications. Features and benefits: 28 laminated pages for durability in workshop envir...
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