About the product

  • 8-inch adjustable wrench; winner of 2005 Popular Mechanics Editor's Choice Award
  • Wrench easily adjusts to cover 16 sizes; won't strip nuts or bolts
  • Soft rubber handle; hardened steel laminate with black oxide coating
  • Includes 1 wrench
  • 8 inches; 3/4-pounds; lifetime warranty; 


Product description

The 8-inch Bio Wrench is unlike any wrench you’ve ever seen before. In fact, it looks and works more like pliers than a wrench. This cleverly designed tool has a pair of spring-loaded handles and a circular head that’s fitted with six hardened steel jaws. As you squeeze the handles, all six jaws slide toward the center and lock onto the head of the nut or bolt. This unique mechanism allows the Bio Wrench to grip hexagonal, square and even rounded fasteners. It fits six standard sizes ranging from 7/16 inch to 3/4 inch, and 10 metric sizes from 11 millimeter to 20 millimeters. This ruggedly built tool is made of hardened, cold-rolled steel and features a rust-resistant black-oxide finish. And it’s worth noting that the Bio Wrench is proudly made in the USA and it’s guaranteed forever. -- Joseph Truini


From the Manufacturer

The Bio Wrench is a remarkable patented hybrid of an adjustable wrench with the ease of use of a pair of pliers. In addition, the genius of attacking a bolt/nut on all 6 flat sides removes the stress and strain on the corners of the bolt. This, coupled with the superior gripping action of the jaws, allows the user to complete their work without the wrench slipping off and damaging the bolt. The design of the Bio Wrench multiplies your hand's gripping force, so you can more easily tighten/loosen bolts. You can develop ratchet-like speed by fully turning the Bio Wrench, release the grip while still on the bolt, reposition wrench, tighten grip-repeat until finished. The Bio Wrench covers 16 sizes of fasteners from 7/16 to 3/4-inch and from 11 to 20 mm. Winner of 2005 Popular Mechanics Editor's Choice Award. Made in the USA.

Technical Details

Part Number


Item Weight

2.08 ounces

Product Dimensions

8 x 0.8 x 0.8 inches

Item model number



Retail Packaging


1 ml

Item Package Quantity


Number Of Pieces


Measurement System


Grit Rating


Batteries Included?


Batteries Required?


Warranty Description



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Logger Head Tools BW8-01R-01 Bio Wrench 8 Inch Adjustable Wrench

  • Brand: Other
  • Product Code: WR0119-8
  • Availability: In Stock
  • S.R 110
  • S.R 60

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