Piston Ring Installation Pliers — 170 mm (6.7") Key benefits Makes piston ring installation easier, faster and more convenient compared with manual stretching. Non-slip rubber handles reduce hand fatigue and improve control for safer, more efficient work. Durable, heat-treated construction provides dependable performance and long service life. What it does Expands and holds piston rings securely for accurate placement into piston grooves, helping you complete ring installation with less risk of distortion or slippage. Specifications Total length: 170 mm / 6.7" Clamp head length: 90 mm / 3.5" Handle length: 80 mm / 3.1" Maximum opening: 40 mm / 1.6" Material: chrome vanadium steel body with silica gel (rubber) handles; heat-treated for strength and durability Why it stands out Precision manufacturing and solid materials deliver reliable clamping force without compromising ring shape. Ergonomic, non-slip silica gel handles provide comfort during repeated use and better grip in workshop conditions. Compact size and maximum 40 mm opening suit a wide range of common piston ring dimensions while remaining easy to store and carry. Typical applications Motorcycle engine maintenance and piston ring replacement. Small engine repairs, such as lawn mowers, chainsaws and generators. Engine rebuilding tasks in compact cars, scooters or other light equipment where controlled ring installation is required. Usage note Use the pliers to expand the ring just enough to fit into the piston groove; avoid excessive force to preserve ring integrity. Store clean and dry to maintain tool life.