The WMP Piston and Ring Compressor Set includes six bands and pliers. Use the pliers with any band to install pistons from 2-7/8 to 4-3/8 in diameter (73mm to 111mm). The self-locking ratchet allows you to compress the rings by minimal graduation. The pliers can be used vertically or horizontally. The perfect set for piston ring installation without causing damage to yourself, the rings, or your cylinder.

Bands included:

• 2-7/8 to 3-1/8 (73mm to 79mm)
• 3-1/8 to 3-3/8 (79mm to 86mm)
• 3-3/8 to 3-5/8 (86mm to 92mm)
• 3-5/8 to 3-7/8 (92mm to 98mm)
• 3-7/8 to 4-1/8 (98mm to 105mm)
• 4-1/8 to 4-3/8 (105mm to 111mm)