Hi-Lo Welding Gauge Gauge Internal Single Purpose Root Gap Metric 5L [Precise Design]: With 3/8" SAE

[Precise Design]: With 3/8" SAE female threads

for 1/2 Lbs of capality

Acetone is used to make plastic

easy to watch and durable

which will protect your test tubes or beakers from scratchesThe bottom clear plate is for holding water that comes out of a test tube or beaker so it doesn't get dirty on your work surface

Hi-Lo Welding Gauge Gauge Internal Single Purpose Root Gap Metric 5L [Precise Design]: With 3/8" SAE[Wide Application]: Measure internal misalignment, Measure fit gap, Measure bevel on end preparation, Measure the crown height of welds, Measure fillet weld size, scribed line, and socket welds; [Specification]: Only Metric; [Material]: Stainless Steel, lightweight, easy to carry.