Non-contact air plug gage for internal-diameter measurement, using two opposing air jets that read back pressure varying with plug-to-bore clearance. Wide-clearance design with deeply recessed, self-cleaning jets, from 0.120" to 6.010".

• Through-hole internal diameters
• 0.120" (3.05 mm) to 6.010" (152.65 mm)
• Self-cleaning recessed jets