Stanley Proto JC484 is a 4-inch capacity adjustable face spanner wrench with a non-reflective ProtoBlack™ finish,

suitable for applications where non-plated products are required. This wrench features precision machined pins

for secure engagement with holes or slots on the face of a bearing or nut. It is designed to tighten collars,

lock nut rings, and seal/packing nuts on hydraulic cylinders with ease and precision.