GearWrench Metric Crowfoot Wrench Set 81909 10 Piece 3 by 8 Inch Drive Open End 10mm to 19mm (Full Polish Chrome Automotive Hand Tool)

GearWrench 81909 10-Piece 3/8-Inch Drive Metric Open-End Crowfoot Wrench Set

The GearWrench 81909 10-Piece 3/8-Inch Drive Metric Open-End Crowfoot Wrench Set is an industrial-grade specialized hand tool set forged from alloy steel to access line fittings in tight-clearance spaces. Meeting ASME strength standards, each crowfoot head pairs directly with standard 3/8-inch square drive ratchets, breaker bars, and extensions to deliver rotational torque around obstructions in automotive engine bays and hydraulic equipment assemblies.

Best Used For:

• Automotive Fluid Line Service: Accessing power steering pressure lines, brake flare nuts, and A/C hard lines where solid sockets cannot slide over piping.
• Tight Engine Bay Maintenance: Turning oxygen sensors and recessed bracket bolts hidden behind exhaust manifolds using 3/8-inch drive extension bars.
• Hydraulic & Industrial Machinery Repair: Torque-tightening hydraulic hose fittings and fuel lines on heavy commercial equipment with restricted tool access.

Key Performance & Safety Features

• Universal 3/8-Inch Drive Fitting: Directly attaches to all standard 3/8-inch drive ratchets, breaker bars, and torque wrenches for extended clearance.
• Open-End Flare Profile: Slides sideways onto continuous fluid lines, tubes, and wiring harnesses where closed box-end tools cannot fit.
• Forged Alloy Steel Construction: Heat-treated alloy steel structure resists head flex and jaw spreading under high rotational torque loads.
• Full-Polish Chrome Finish: Premium electroplated chrome coating provides superior protection against jobsite rust, oils, and chemical corrosion.
• Hard-Stamped Size Markings: Large permanent numbers etched onto every head ensure fast identification in dim engine compartments.
• ASME Specification Compliance: Precision machined to meet or exceed strict ASME standards for dimensional tolerances and load capacity.

What’s Included

• (10) 3/8″ Drive Open-End Metric Crowfoot Wrenches: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm
• (1) Blow-Molded Plastic Storage Organizer Tray

Technical Specifications

Pro-Tip: Mount the crowfoot wrench head at a 90-degree angle relative to your torque wrench handle when tightening hydraulic lines to keep torque calculation adjustments at zero.