This is a O-ring sizing cone gauge tool used for measuring O-rings from 3mm to 30mm quickly and accurately. Also includes an o-ring thickness or height gauge from 0.8mm-2mm.
- Made in the USA
- Lifetime Warranty
- Free Shipping from the USA
- Free Returns within 30 days
3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm