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Harris micro-punch

complete, I.D. 1.2 mm, aluminum, pack of 1 (with cutting mat)

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harris punch, micro punch, punch accessories, whatman punch




pack of 1 (with cutting mat)


Whatman Article No. 28421837 (US reference)
Whatman WB100005


1.2 mm

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General description

Multi-purpose sampling tool for standardizing samplings sizes of DNA blood cards to 1.2 mm in diameter.

It is a coring tool designed for simultaneous sample extraction, collection and storage in one operation. Rockwell hardened, hand sharpened tips, are designed for long shelf-life and precise repeatable samples with accurate delivery placement.

  • Recommended for the precise punching of FTA Cards
  • No sample carryover when recommended procedures are used
  • Tips provide up to 2000 punches
  • Polished steel tip is case hardened and can be sterilized
  • The cutting mat ensures clean sample cuts and extends the life of the cutting tip
  • 1.2 mm punch recommended for use with FTA Cards containing whole blood and samples with high DNA content
  • 2.0 mm punch recommended for use with FTA Cards containing buccal cells, plasmids, plant, and other samples with lower DNA content
  • 3.0 mm punch recommended for use with FTA Elute Cards

The Harris Micro-Punch consists of a razor sharp cutting tip designed to cut, retrieve and store cored samples from source materials such as tissue, gels, paper, cloth, leaves, paint chips, films or other thin substrates. Ideal for tissue processing or forensic applications.

Tips are machined from 440c stainless steel that is heat treated to Rockwell Rc 58 hardness and then individually sharpened to a razor edge for a long cutting life.

Tips are available in diameters ranging from 1.2 to 3.0 mm. The plungers consist of a knob-screw assembly made from injected molded, high tech, lubricated plastic to eliminate sticking with a 440c stainless steel ejection rod and spring. Each Harris Micro-Punch is sold with a protective plastic tip cover.

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