Close-up detail of the flexible joint and 12-point ratcheting box end.
Infographic of a flex head ratcheting wrench highlighting features such as the 72-tooth gear, off-corner loading, low profile ends, and flexible head.
Artistic arrangement of the flex head wrenches fanned out to display the polished finish and the pivoting capability of the ratcheting ends.
Close-up view of the polished chrome open end jaw of a combination wrench.
Close-up detail of the flexible joint and 12-point ratcheting box end.
Side profile view of a polished chrome metric flex head ratcheting combination wrench showing the flexible joint near the box end.
Technical graphic illustrating the 72-tooth gear mechanism which allows for a minimal 5-degree swing arc for tighter turns.
Close-up detail of the flexible joint and 12-point ratcheting box end.
Graphic illustration demonstrating the flex head design which pivots to provide easier access in tight spots.
Technical graphic illustrating off-corner loading technology where force is applied to the flats of the fastener to reduce rounding.
Graphic illustration titled Pass Through Design demonstrating how the wrench fits over long bolts.
Wrench holding a long bolt with text 'Pass Through Design Works on Long Bolts' on an orange background
Close-up detail of the flexible joint and 12-point ratcheting box end.
Infographic of a flex head ratcheting wrench highlighting features such as the 72-tooth gear, off-corner loading, low profile ends, and flexible head.
Artistic arrangement of the flex head wrenches fanned out to display the polished finish and the pivoting capability of the ratcheting ends.
Close-up view of the polished chrome open end jaw of a combination wrench.
Close-up detail of the flexible joint and 12-point ratcheting box end.
Side profile view of a polished chrome metric flex head ratcheting combination wrench showing the flexible joint near the box end.
Technical graphic illustrating the 72-tooth gear mechanism which allows for a minimal 5-degree swing arc for tighter turns.
Close-up detail of the flexible joint and 12-point ratcheting box end.
Graphic illustration demonstrating the flex head design which pivots to provide easier access in tight spots.
Technical graphic illustrating off-corner loading technology where force is applied to the flats of the fastener to reduce rounding.
Graphic illustration titled Pass Through Design demonstrating how the wrench fits over long bolts.
Wrench holding a long bolt with text 'Pass Through Design Works on Long Bolts' on an orange background
GEARWRENCH

GearWrench Ratcheting Combination Wrench Set 9901D 12-Piece Flex Head Wrench Kit (72-Tooth, 5-Degree Arc Swing, Automotive Engine Maintenance)

Only 3 left
SKU: 9901D
$186.47 USD

Description

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GearWrench 12-Piece Metric Flex Head Ratcheting Combination Wrench Set

The GearWrench 12-Piece Metric Flex Head Ratcheting Combination Wrench Set is an industrial-grade ratcheting wrench kit featuring 72-tooth gearing and 180-degree pivoting heads designed to navigate restricted spaces. Engineered for high-torque fastener engagement, this set eliminates round-off risks in cramped automotive and mechanical applications.

Best Used For:

  • Automotive Engine Maintenance: Accessing obscured transmission bolts and deep engine bay fasteners around manifolds and wiring harnesses.
  • Industrial Machinery Assembly: Tightening and loosening hex hardware located behind tightly packed structural frames and hydraulic lines.
  • Routine Fleet Servicing: Rapidly spinning down metric fasteners in high-vibration equipment without constant wrench repositioning.

Key Performance & Safety Features

  • Flexible Head Design: Pivots up to 180 degrees to bypass obstructions and engage fasteners at complex angles.
  • High-Efficiency Ratcheting: Incorporates a 72-tooth gear mechanism requiring only a 5-degree swing arc for confined operations.
  • Off-Corner Loading: Drives fastener flats rather than corners to eliminate rounding and maximize applied torque.
  • High-Visibility Markings: Stamped size designations on both ends of the beam ensure quick tool selection.

What's Included

  • (1) 5/16-Inch Flex Head Ratcheting Combination Wrench
  • (1) 23/64-Inch Flex Head Ratcheting Combination Wrench
  • (1) 25/64-Inch Flex Head Ratcheting Combination Wrench
  • (1) 7/16-Inch Flex Head Ratcheting Combination Wrench
  • (1) 15/32-Inch Flex Head Ratcheting Combination Wrench
  • (1) 31/64-Inch Flex Head Ratcheting Combination Wrench
  • (1) 35/64-Inch Flex Head Ratcheting Combination Wrench
  • (1) 19/32-Inch Flex Head Ratcheting Combination Wrench
  • (1) 5/8-Inch Flex Head Ratcheting Combination Wrench
  • (1) 21/32-Inch Flex Head Ratcheting Combination Wrench
  • (1) 45/64-Inch Flex Head Ratcheting Combination Wrench
  • (1) 3/4-Inch Flex Head Ratcheting Combination Wrench
  • (1) Wrench Organizer Rack

Technical Specifications

Model Number 9901D
Piece Count 12
Measurement System Imperial (SAE Converted)
Size Range 5/16 in - 3/4 in
Head Type Flexible (180 Degree)
Drive Type 12 Point Ratcheting
Arc Swing 5 Degrees
Material Alloy Steel
Finish Full Polish Chrome
Weight 6.80 lbs
Warranty Full Lifetime

Pro-Tip: Always align the box end fully onto the fastener head and keep the flex joint locked straight when breaking loose high-torque or rusted bolts to maximize leverage safety before utilizing the ratcheting arc.