Park Tool 1.7mm Internal Retaining Ring Pliers RP

Professional quality ring plier made from forged, heat-treated cro-moly steel with a return spring and vinyl dipped grips. 

The RP-4 has 1.7mm tips on bent nose blades for larger, internal snap rings. The tips open from 21mm down to 2mm (center to center).

The RP-5 has 1.7mm tips on straight blades for small, internal snap rings. The tips open from 22mm to 0 (tips touching).