Abstract: Arrangements of the innovation relate to a micro-coring system configured to harvest a plurality of cores, either sequentially or simultaneously. In one arrangement, the micro-coring system comprises a harvesting tool configured to harvest and transfer at least one tissue core from a donor site to a recipient site, the at least one tissue core having a diameter of between about 1.0 mm and 3.0 mm diameter. In one arrangement, the harvesting tool comprises: a coring tool configured to penetrate tissue at the donor site and capture a tissue core from the tissue, and an extractor pin disposed within an aperture extending along a longitudinal axis of the coring tool, the extractor pin configured to extract the core from the coring tool.