Bel-Art Metric Gauge Tubing Sizer; Measures O.D. and I.D.

A handy metric diameter gauge that will end doubt about inside or outside diameters.

• Measures glass and plastic tubing, connecting pieces, rods, test tubes, etc. between 1.5 and 16mm

• Holes on one side measure O.D.; pins on the other side measure I.D

• Order one for your tubing and one for your test tubes, centrifugation tubes and adaptors

• Polypropylene plastic; autoclavable at 121ºC (250ºF)