The Proto 3in. Black Oxide Adjustable Face Spanner Wrench is a sturdy tool for tightening slot nuts on collars, lock nut rings and seal/packing nuts on hydraulic cylinders. The pins are precision-machined to provide proper engagement with holes or slots on the face of a bearing or nut on hydraulic cylinders. The non-reflective finish is intended for use where non-plated tools are required.
- (1) Wrench