• Blade Length: Approximately 3.6875" ~ 3 11/16" ~ 94 mm
• Blade Material: VG-10 Stainless Steel
• Blade Style: Hollow Ground, Partially Serrated Edge
• Blade Thickness: Approximately 0.125" ~ 1/8" ~ 3.2 mm
• Lock Style: Back-Lock
• Closed Overall Length: Approximately 4.875" ~ 4 7/8" ~ 124 mm
• Open Overall Length: Approximately 8.4375" ~ 8 7/16" ~ 214 mm
• Handle Material: Orange Fiberglass Reinforced Nylon (FRN)
• Pocket Clip: Right Hand Tip Up | Left Hand Tip Up
• Weight: Approximately 4.0 Ounces ~ 113 Grams
• Special Features:
  Lanyard Hole
  Retractable Carbide Glass Breaker Tip
  Safety Whistle
  Made in Seki City Japan

We named this knife after its principal job function, to assist.  The Spyderco Assist Black Blade is a lightweight folder for emergency fire/rescue professionals and the well-equipped citizen who rely on knives to be straightforward in use and perform flawlessly.  The blade is coated in non-reflective black carbon nitride with a patented lift-and-pry (blunt-nose) shape made from high-carbon VG-10 stainless steel and loaded with teeth.  Most if its' 3-3/8" (86mm) cutting edge is serrated with the last inch at the tip left PlainEdged.

Above the one-hand-open hole sits a feature called a Cobra Hood.  It's a metal cap that guides the thumb over the hole for quick, by-feel opening then doubles as a textured leveraging platform for your thumb during cutting.  A wavy pattern cut out of the top of the blade and again along the handle is for controlled rope cutting.  By placing a rope in the groove (between the partially open blade and handle) you can squeeze the blade shut, slicing and trimming rope in a controlled movement without fully exposing the cutting edge.  The handle is black lightweight fiberglass reinforced nylon (FRN) with a survival whistle built into the butt end, shrill and high-pitched enough to get you noticed.  A reinforced wire pocket clip attaches through the handle on either side for left- or right-hand use.  A retractable and replaceable carbide-tip glass/ice breaker is housed inside the handle and is exposed when the closed blade is squeezed into the handle, retracting when pressure is released.