Examples of multiple fluted drills for reamering operations in machines. This photograph is from a large selection of mainly unattributed engineering illustrations and photos which were originally published in 1936. The sizes and quality of the originals vary quite widely.

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Size: 7500px × 5303px
Location: England
Photo credit: © Preserving Printed Matter Matters / Alamy / Afripics
License: Licensed
Model Released: No

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