What is the hooked notch on the back of the handle

5mm Blade Thickness

This knife features a bold skull and flag design on its injection-molded ABS handle

Blade Length: 3 inches of authentic Damascus steel

Comes with a leather lanyard for easy portability

The Busted Knuckle Garage Black Wrench-Style Spring Assisted Folding Knife with a Bottle Opener (Copy) Compass What is the hooked notchProduct Description The Busted Knuckle Garage wrench style folding knife with a bottle opener is a spring assisted knife in black designed with a mechanic wrench themed aesthetic. It is marketed as a, often branded as a "Mechanic's Bottle Opener Monkey Wrench Pocket Knife". Specifications: Design: The handle is designed to resemble a wrench, fitting the "Busted Knuckle Garage" brand theme Blade: Features a 3 inch black 3Cr13 stainless steel drop point