Mueller-Kueps 13-Pc Ratchet Flare-Nut Wrench Kit (10–19 mm, 3/8″ Drive)

What it does

Gets straight onto seized brake, fuel, A/C and sensor lines where a regular box wrench or socket won’t fit. The ratcheting crow-foot heads give full hex contact while the lockable adapters let you work straight, at 90 degrees, or on a swivel for awkward angles.

Specifications

• Pieces: 13 (10 ratcheting flare-nut heads — 10 mm through 19 mm — plus 3 adapters)
• Drive: 3/8″ square
• Adapters: lockable 3/8″ extension, 90° adapter, lockable swivel adapter
• Construction: chrome-plated forged steel crow-foot heads, fine-tooth ratchet mechanism
• Packaged in a CNC-cut foam tray for drawer or cart storage
• Typical jobs: brake and clutch hydraulics, fuel rails, A/C lines, NOx/O₂ sensors, shift-linkage nuts, tight engine-bay fittings

Drop it in the cart when you need flare-nut strength and ratchet speed in the same tool.