Piston ring pliers saTra S-D110PR 110–160 mm internal/external fitment

The saTra S-D110PR piston ring pliers are designed for installing and removing piston rings with an adjustable span of 110–160 mm for both internal and external fitment. The tool provides controlled expansion and a secure grip to minimise ring distortion during service of pistons and cylinder assemblies in automotive and small-engine applications. Constructed for workshop and garage use, these pliers combine a simple adjustment mechanism with a shape suitable for handling a range of ring diameters within the specified span.

Advantages

saTra S-D110PR piston ring pliers offer precise span adjustment across the 110–160 mm range, allowing one tool to handle multiple piston ring sizes. The mechanism provides even expansion to reduce the risk of bending or breaking rings during installation or removal. The pliers are suitable for both internal and external fitment, giving flexibility when working on different engine designs. The build and ergonomic handles support steady control during repetitive tasks in a professional workshop environment.

Suitable for

• Installing and removing piston rings on automotive pistons
• Servicing small engines in motorcycles, lawnmowers and generators
• Workshop and garage piston and cylinder assembly maintenance
• Repair shops handling both internal and external ring fitment

Key specifications

• Adjustable span: 110–160 mm for ring diameter accommodation
• Fitment type: suitable for internal and external piston ring installation and removal
• Operation: controlled expansion mechanism to reduce ring distortion
• Handle: ergonomic design for improved grip and control during use
• Intended use: professional and hobbyist workshop applications on pistons and cylinders

How to use

Select the pliers and adjust the span to match the piston ring diameter within the 110–160 mm range, then position the tips onto the ring. Operate the tool to expand the ring evenly, carefully lift it over the piston (for external fitment) or compress and guide it into the groove (for internal fitment) while maintaining steady control. Reverse the action to release the ring when removing. Inspect the ring and groove for proper seating and any signs of damage before completing the assembly.

Usage recommendations

When using the piston ring pliers, choose the correct span setting before engaging the ring and work slowly to avoid sudden over-expansion. Keep the tool clean and free of debris that could affect the mechanism. For repeated professional use, inspect the tips and adjustment mechanism regularly for wear and replace the tool if deformation or slippage is detected.