J&T RC Bearing Tool

The J&T Bearing Checker & Installation Tool is a convenient way to quickly measure the ID of any metric bearing, for common sizes such as 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, and 14mm. In addition to checking the size, this can be used to help install bearings with ease, ensuring that they are installed as straight as possible.