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Rock Drill Data
Rock Drill Data
Rock Drill Data
Rock Drill Data
Rock Drill Data

Rock Drill Data

$ 21.12

Availability: 58 in stock
  • Time Period Manufactured: 1930-Now
  • Modified Item: No
  • Condition: Fine. Only defect is a signature of a prior owner on the first flyleaf.
  • Country/Region of Manufacture: United States
  • All returns accepted: ReturnsNotAccepted

    Description

    A comprehensive study of rock drills by a leading manufacturer. Published in 1960. Size 7 1/2" x 4 3/4" (h x w), 399 pages. Binding, black leather-like material. Very slight wear at top and bottom of backstrip, otherwise almost as new. Prior owner's signature on first flyleaf. Covers every aspect of rock drills: history, types, rounds, tunneling, bit selection, jackhammer work, stopers, and other subjects too numerous to mention. Has a large number of tables on compressed air properties, conversion tables, areas of circles, logarithms, temperature conversions, and many other subjects.