Wiha® 30391 Professional Metric Combination Ratchet Wrench Set – 12-Piece Premium Chrome Vanadium Steel Wrench Kit (8mm - 19mm) with Smooth 72-Tooth Gear

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SKU:
WIH30391
UPC:
084705303918
MPN:
30391
Availability:
Ready to ship
Weight:
0.0000 LBS
  • Front view of the Wiha 30391 12 Piece Metric Combination Ratchet Wrench Set with organized storage rack and polished metric ratcheting wrenches.
  • Wiha 30391 Metric Combination Ratchet Wrench Set 12 Piece with storage rack, featuring metric combination wrenches from 8mm to 19mm for professional automotive and industrial applications.
  • Close-up of the 12mm Wiha combination ratchet wrench from the Wiha 30391 12 Piece Metric Wrench Set, featuring open-end and 72-tooth ratcheting box-end design.
$224.98
  • ✔️ Tight Space Access: 72-tooth ratchet system delivers a tight 5° arc swing, allowing for smooth, efficient operation in cramped, limited-access areas.
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Description

Wiha 30391 Metric Combination Ratchet Wrench Set 12-Piece

Ultra-Precise 72-Tooth Ratcheting Gear. Industrial Chrome Vanadium Steel Forging. Comprehensive 8mm to 19mm Metric Range.

The Wiha 30391 12-Piece Metric Combination Ratchet Wrench Set brings uncompromising industrial torque, seamless tight-space accessibility, and lightning-fast mechanical tracking directly to your primary tool chest. Purpose-built to eliminate the tedious resetting of standard open-end wrenches, the bulkiness of standard sockets in tight clearances, and the frustrating knuckle damage caused by budget gears stripping under high loads, this premium German-engineered combination ratcheting wrench set sets a professional workshop baseline. It arms heavy-duty industrial maintenance mechanics, commercial field contractors, structural installers, and automotive technicians with an exact-fit metric layout optimized to spin down engine block fasteners, service industrial pump fittings, tighten machinery anchoring assemblies, and master dark clearances with absolute speed.

Exceptional metallurgical durability and zero-play mechanical tolerance form the baseline platform of this high-capacity Wiha 30391 Wrench Fleet. Hot-forged from premium, high-tensile chrome vanadium tool steel, every individual wrench is through-hardened and coated in a satin-polished chrome shell to resist heavy wear, oxidation, and aggressive shop oils. The box end incorporates a highly refined 72-tooth ratcheting mechanism that requires a tight 5° swing arc, allowing you to cycle fasteners smoothly inside deeply buried components where hand clearance is non-existent. The open-end configuration is precision-broached to prevent fastener round-off, while the entire 12-piece lineup features stamped sizing indicators for rapid selection.

Why the Wiha® 30391 Metric Combination Ratcheting Fleet Rules the Shift:

  • Premium 72-Tooth Ratchet Design: Smooth internal gear system turns on a minimal 5-degree swing arc, allowing you to loosen or tighten fasteners in extremely restricted clearances.
  • No-Skip 12-Piece Master Range: Delivers a complete metric array spanning smoothly from 8mm up to 19mm, ensuring you always have the exact fit for common commercial fasteners.
  • Industrial Chrome Vanadium Strength: Built from high-alloy steel that handles intense manual torque loads without bowing or stretching the jaws.
  • Fastener-Protecting Off-Corner Loading: Engineered box-end profile applies force against the flat sides of fasteners rather than the corners, completely eliminating rounding damage.
  • Satin Chrome Slip-Resistant Armor: Polished satin finish repels industrial grease, fluids, and shop dirt, providing a secure grip even when your hands are slick with oil.

Specifications

Industrial Wrench Metric Universal Specification Details
Model SKU Part Number Professional Combination Ratchet Set / 30391
Manufacturer Brand Line Wiha® Quality Tools (German Engineered Industrial Series)
Set Component Count 12 Pieces (The Most Demanded Continuous Metric Profiles)
Base Material Metallurgy Premium High-Tensile Forged Chrome Vanadium (Cr-V) Steel
Core Shaft Core Hardness Thoroughly Through-Hardened and Tempered Structural Design
Wrench Protection Coating Satin Polished Chrome Finish Resists Corrosion and Oil Scaling
Ratcheting End Configuration Ultra-Smooth 72-Tooth Internal Gear Profile (5° Swing Arc)
Wrench Dual Interface Classic Open-End Profile + 72-Tooth Ratcheting Box-End
Included Metric Sizes Array 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19mm
Fastener Force Delivery Off-Corner Torque Distribution Prevents Nut Round-Off

Frequently Asked Questions

+ Which exact metric wrench sizes are bundled inside this 12-piece Wiha set?
The 30391 master set provides an absolute, no-skip continuous sizing lineup to handle all standard metric fasteners. The kit features 12 individual wrenches in the following sizes: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, and 19mm. This continuous range guarantees you will never be caught missing a critical intermediate tool on site.
+ What is the functional benefit of a 72-tooth ratcheting mechanism?
Standard ratcheting mechanisms require a large physical swing arc (often 30 degrees or more) to click to the next gear tooth, making them completely useless in tight, cramped engine bays or industrial panel spaces. Wiha's refined 72-tooth internal gear breaks the circle down into tiny 5-degree steps. This lets you turn stubborn fasteners with tiny, incremental finger movements even when the wrench handle is tightly boxed in by obstacles.
+ Are these ratcheting wrenches directional, or do they feature a reversing lever switch?
These combination wrenches feature a rugged, low-profile non-reversible ratcheting box end. To switch your turning direction from tightening to loosening, you simply flip the wrench over 180 degrees. This leverless design is explicitly preferred in heavy industrial environments because it completely eliminates bulky external selector switches that jam from dirt or snap off when dropped into tight machine frames.
+ How does the box end prevent rounding off the soft corners of aluminum or brass nuts?
Cheap box-end profiles contact hex nuts directly on the apex of their sharp corners, which easily shears the metal and rounds off the fastener. Wiha uses an advanced off-corner loading geometry machined inside the box end. This profile shifts all mechanical pressure onto the wide, flat faces of the nut instead, providing a vastly superior grip that can channel maximum torque through soft or stubborn fasteners without slipping or damaging the metal.
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Product Specifications

selling_points:
✔️ Tight Space Access: 72-tooth ratchet system delivers a tight 5° arc swing, allowing for smooth, efficient operation in cramped, limited-access areas.
category_bullets:
• Wiha Metric Ratchet Set Core: Professional 12-piece metric combination ratchet wrench set features 72-tooth precision ratcheting, 5° arc swing, and 12-point box-end design for superior performance. • 72-Tooth Mechanism. • Satin Finish.
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