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The ROTOR CLIP A-300 is a fixed-position external retaining ring applicator pliers designed for installing radial retaining rings onto shafts and housings. Built for single-size precision work, the A-300 handles rings at a fixed 1/8 inch diameter, making it a dedicated tool for applications where ring size is consistent. The tool is heat treated for durability and conforms to ISO 13485:2016 quality management standards. Weighing 1 pound, this is a lightweight hand tool suited for bench work, field service, and production line use. It is not tether capable. Technicians working in HVAC, mechanical assembly, and general industrial trades rely on this type of plier for reliable, damage-free ring installation.
The A-300 is suited for any application requiring external radial retaining ring installation on small-diameter shafts. It performs well in tight assembly environments where ring distortion must be avoided, including motor shaft assemblies, pump components, and mechanical drive systems. The single-position design keeps the tool simple and reduces the risk of misapplication. At 1 pound with overall dimensions of 8 inches in length, 4 inches in height, and 3 inches in width, it fits easily in a toolbox or service bag.
Designed for use with external radial retaining rings at a fixed minimum and maximum ring size of 1/8 inch. Suitable for OEM and aftermarket ring installation applications where a dedicated single-size external applicator plier is required.
Installation should be performed by a qualified technician familiar with retaining ring tooling and mechanical assembly procedures. Ensure the shaft or housing is free of burrs and properly supported before seating the ring. Always wear appropriate eye protection, as retaining rings can slip and eject under spring tension. Confirm the ring is fully seated in its groove before returning the assembly to service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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