Park tool rp1 snap ring pliers 09 mmpark tool sets the industry standard for workshop tools and their snap ring pliers maintain that standard designed with the specific needs of the bike mechanic in mind these snap ring pliers are designed for small internal snap rings constructed from forged heat treated crmo steel with a return spring and vinyl dipped grips the rp 1 has 09mm tips on straight blades the tips open from 22mm to 0 tips touching snap ring pliers are designed to install