Description
A long clip point in D2, filed notches along the spine, and dark streaked bone inserts pinned through the handles. Nine inches of knife with a working profile.
Made for: the buyer who wants the blade to be the interesting part. The grind runs almost the full length with a deep belly and a swept tip, which is a shape borrowed from working hunting knives rather than from flipping knives, and it cuts like one.
| Overall length | 9.1 inches |
| Blade length | 4.4 inches |
| Handle length | 4.7 inches |
| Steel | D2 tool steel |
| Handle | – Brass with Bone Inserts |
What that blade shape is good at
The long curved belly is the part that does the work. It gives you a lot of edge in contact when you draw the knife through something, which is why this profile has survived on skinning and general utility knives for two centuries. The swept clip lowers the tip for control. The cost is the same one every clip point pays: the tip is fine and it is the first thing to break if you use the knife as a lever. Do not pry with it.
The spine notches
The filing along the spine near the ricasso is a thumb ramp. Put your thumb on it when you choke up and the knife stops wanting to roll in your grip during a controlled cut. It is a small feature that changes how the knife feels in close work, and it is one of the few decorative-looking details on this knife that is not actually decorative.
Bone inserts and how they age
The inserts are bone, and the streaked, translucent look comes from the density of the material varying naturally through the piece. Bone is hard, it ignores the humidity swings that make wood move, and handling burnishes it instead of wearing it away. Over years of handling it picks up a slight sheen where your fingers sit. The pins that hold it are set flush and should stay that way; if one ever stands proud, the insert has moved and it wants attention before it cracks.
Keeping it in shape
D2 is close to stainless in practice. Wipe it dry and it will not spot. The one habit worth keeping is oiling both pivots, because grit trapped in a balisong pivot wears the pivot rather than the grit. When the edge stops biting, take it back on a diamond stone rather than a worn ceramic; D2 has enough carbide in it to glaze a soft stone quickly.
Is it too tip-heavy to flip? It is blade-forward compared with a spear point, and you will feel that on the return.
How sharp does it arrive? Sharp enough to cut you badly. Treat it as live from the box.
Blade shapes explained covers why belly and tip position matter, and sharpening on a whetstone walks through the angle. For the same steel in a shorter drop point, see this shorter bone-handled flipper.
Model: BMK-480







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I’ve been collecting knives for years, and this store has quickly become one of my favorites. The steel butterfly knife I purchased here is a shining example of excellence.
Olivia D. (verified owner) –
The steel butterfly knife I received from this store is visually stunning and incredibly functional. It’s now my go-to tool for various tasks. Highly recommended!