Review: How effective is Amazon Neiko Sand Blaster Gun and a small air compressor vs large one?

The Neiko sandblaster gun / Harbor Freight central pneumatic blaster gun are exactly the same. Many more manufacturers have a very identical gun. Check out my testing and review of this sandblaster gun with a small pancake air compressor with normal fittings as well as a larger air compressor with high volume fittings.

Neiko gun
https://www.amazon.com/dp/B0785FXQQP/ref=cm_sw_em_r_mt_dp_Tx41FbV1S9QVR?_encoding=UTF8&psc=1

Harbor Freight gun
https://www.harborfreight.com/21-oz-hopper-gravity-feed-spot-blaster-gun-95793.html

Compressor specs:
The large compressor is a Craftsman 30 gallon 3hp 220 volt (pump and motor separate) with 14 CFM of displacement. It operates at 7.5 SCFM at 125 psi and 8.5 SCFM at 90psi, max pressure is 125 psi (regulated cutout).
The smaller compressor is a Craftsman 1.5 Gallon 120 volt (oil free) that operates at 2 SCFM at 90 psi, max pressure is 150psi (limited info on this one because it's pretty basic).

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