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Manual Test Hammers provide the most economical, quick and easy concrete compressive strength test in the field. It will also provide an indices of hardness and compressive strength for other construction materials. Conforms to ASTM C-805 and other International Standards.
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Low Impact Manual Test Hammers provide the most economical, quick and easy concrete compressive strength test in the field for concrete specimens below 100 mm (4 inch) thickness, as well as rock core testing. It will also provide an indices of hardness and compressive strength for other construction materials, such as ceramics, and tile . Conforms to ASTM C 805, D-5873 and other International Standards.
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It is recommended that calibration of the rebound hammers be checked regularly usually after about 2000 strokes.The James Calibration Anvil (W-C-7312) has been designed for just that purpose.
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