





Description
BLADE LENGTH 3.30in [8.38cm]
BLADE THICKNESS 0.115in [2.921mm]
OPEN 7.75in [19.69cm]
CLOSED 4.45in [11.30cm]
WEIGHT 2.89oz [81.93g]
HANDLE THICKNESS 0.52in [13.21mm]

BLADE STYLE
REVERSE TANTO
Defined by the bevel creating an upside-down tanto profile, adding weight forward on the blade.

BLADE STEEL
CPM-S9OV PREMIUM STAINLESS STEEL(59-61HRC)
A true super-steel, $90V offers substantial improvements in corrosion resistance over 440C and wear resistance beyond that of any other steel in our lineup.

HANDLE
G10
Multiple layers of resin-laminated fiberglass make G10 incredibly durable, rigid, and resistant to the elements.

OPENING ACTION
AUTOMATIC
"Autos" have a button or other actuation switch that mechanically fires the blade open without the user directly
manipulating the blade.
Everyday Mediator
feature
A tactical knife doesn't always have to be overbuilt to serve its purpose. Drawing inspiration from some of our classic designs, the new 8551BK Mediator is Benchmade's latest push-button automatic knife. Featuring a herringbone-shaped G10 milled handle and a CPM-S90V reverse tanto blade, the Mediator™ is a sleek, responsive switchblade.

Ratings & Reviews
Collapsible content

MEETTHE MEDIATORS®
MEETTHE MEDIATORS®
Designed with purpose and built to last, the Mediator® sets a high bar for durability and performance matched only by our promise that it will be yours, for life.
HOWITIS MADE
HOWITIS MADE
Every Benchmade knife begins with high-grade steel, laser-cut for precision and strength. Each blade is meticulously ground, beveled, and finished to exacting standards, ensuring exceptional performance and durability. Our handles are milled and machined in-house to the tightest tolerances, then hand-assembled and sharpened by expert technicians. With over thirty years of manufacturing excellence behind every edge, our knives are proudly crafted in our state-of-the-art facility in Oregon City, Oregon.
USE & CARE
USE & CARE
Proper care and regular maintenance help make your Benchmade knife yours, for life. Here are some tips for keeping your Benchmade in peak condition:
• Prevent Rust:All steels, regardless of grade or price, can eventually rust. To avoid corrosion, always keep your knife clean, dry, and lightly lubricated. If rust or spotting appears, a quality semi-chrome metal polish can usually restore the finish.
• Hand-Wash Only:Always hand-wash your knife with warm water and mild dish soap, then dry thoroughly.
• Use as Intended:Benchmade knives are precision cutting tools. Do not use your knife as a pry-bar, screwdriver, chisel, or punch—unless specifically designed for those functions.
• Sharpen with Care:If sharpening at home, avoid grinding wheels and high-speed machinery, as they can damage the blade. Use appropriate hand-sharpening methods for best results.
• Tighten Hardware:Over time, handle, pivot, and pocket clip screws may loosen. Use T6 and T10 Torx drivers for adjustments and apply a small amount of releasable thread-locker to maintain secure fittings.