4 sizes in 1 ratcheting box wrench with finger-tip reversing feature on both ends. Designed for servicing automotive, commercial and home air conditioners, refrigeration units and freezers. Hex openings are for packing gland finnting, mounting bolts and compressors, clutch bolts, various tube fittings, dust cap nuts, oil check plugs and other adaptations. Square openings are used on male service valves, plug fittings, compressor valves and refrigerant charging tanks.
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