4.4 Tamping Rods—Two sizes are specified in ASTM methods. Each shall be a round, straight steel rod with at least the tamping end rounded to a hemispherical tip of the same diameter as the rod. Both ends may be rounded, if preferred
4.4 Tamping Rods—Two sizes are specified in ASTM methods.Each shall be a round, straight steel rod with at least thetamping end rounded to a hemispherical tip of the samediameter as the rod. Both ends may be rounded, if preferred