NAVAC NTC6 Tube Cutter, 3/4" Max OD | Aluminum-alloy tube cutter handles 1/8 to 3/4 in OD copper with two sharp cutting blades and a smooth ball-bearing design.

They’re very nice smooth thumb cutters however they only fit onto 5/8 copper OD. It won’t fit on the OD. Of 3/4 “ copper.

This cutter feels good in the hand, the tightening knob is just the right size.. If you ever used the smaller knobs you’ll understand what I mean. Hand and fingers cramp up trying to turn the knob. Excellent cutter. I have the larger cutter as well, and it is superb. Great engineering.

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I just want to add that it is a high quality cutter and that it can be opened up enough to fit 7/8" copper.

Great cutter nice and compact high quality cutter. It will do up to 3/4 inch pipe maybe a we bit bigger works great I have used many other pro brands and this one is just as good.