Two designs of multi-purpose coring tools for simultaneous sample extraction, collection and storage in one operation.

The Harris Micro-punch is designed to standardizing sampling sizes of DNA blood cards. Sampling diameters up to 3 mm. Rockwell hardened, hand sharpened tips, are designed for long shelf-life and precise repeatable samples with accurate delivery placement.

The Harris Uni-core is an inexpensive disposable multi-purpose coring tool suitabe for sampling thin and soft substrates including filter paper, gels and dried blood on cards. Sampling diameters up to 8 mm. Units can be autoclaved at 250 °C for limited re-use.