3M 83497, Hookit Marine Fairing Board, Rigid, 4 1/2 in x 30 in, 7000045684 
Insize ISV-1H4170, RIGID BORESCOPE, 6.85″, 6928640323751
$1,167.46
Length 6.85″. View direction 0?.
Diameter .16″. Angle of view ?60?.
Focus distance .08″, depth of view .2~4″.
Dust/waterproof level: IP67. Can be used in the liquid with temperature -14?F~185?F.
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