A snake commits to one line and wastes nothing getting there, and the BF-108 blade reads the same way: narrow, symmetrical, straight to the point. D2 tool steel, brass and rose wood, 24cm open, 220g. It is a double edged knife, so most of what follows is about what owning one of those is actually like.
Why we make two of these
The BF-107 is the same price, the same steel, the same materials and the same dimensions. People reasonably ask what the difference is, so here it is without the marketing.
They are two readings of the same idea. The BF-107 lets the spine curve away and takes the scenic route to the tip. This one keeps the profile tight and direct, and the snake is in the commitment rather than the wander. Held side by side the difference is obvious. Photographed separately it is subtle.
Beyond that: we work in small batches, and blade shapes that sell get made again with a variation. That is the unglamorous truth about how a model number gets a sibling.
Sharpening a double edged balisong blade
Twice the edges, so roughly twice the work, and one complication nobody warns you about.
On a single edged knife you can rest the spine against your fingers to steady the blade on the stone. On a dagger there is no spine to rest against. Both sides are live. That means you either use a guided system or you get comfortable holding the blade by the flats with the angle carried entirely in your wrist.
- Do both edges in the same session. Sharpening one and leaving the other gives you a knife with two different personalities.
- Count your strokes per side and keep them equal, or the point will migrate off the centreline over a few years of sharpening.
- D2 is slow on a stone, and at 58-60 HRC it is slow on purpose. You are paying that time twice on a dagger, once per edge. That is the cost of an edge that lasts. Diamond or good ceramic, not a pull through gadget.
- Do it rarely. Stropping keeps a D2 edge alive for a long time before it needs actual abrasive.
None of this is difficult. It is just twice as long, and knowing that before you buy is better than finding out on a Sunday afternoon.
The legal position, plainly
Double edged blades are treated separately from knives in general in many places. Some jurisdictions restrict carrying them, some restrict owning them, and some draw the line at blade length or at whether the knife is concealed.
Check the rules where you live before ordering the sharpened version. We are makers, not lawyers, and we are not going to hand you a state by state summary that was accurate in 2019 and has been copy pasted ever since, which is most of what a search on this will return. Read a current primary source for your own area.
The unsharpened trainer sits in a different position in most places precisely because it has no edge, but that is also worth confirming locally rather than assuming.
Specification for this D2 rosewood balisong
| Blade |
D2 tool steel, symmetrical dagger |
| Hardness |
58-60 HRC |
| Handle |
Brass with rose wood |
| Overall length |
24cm open |
| Blade length |
12cm |
| Weight |
220g |
How a dagger behaves in the roll
Better than you would guess, and the reason is symmetry. A single edged blade has a spine, and a spine gives your hand a safe side to catch. That sounds like an advantage, and while you are learning it is.
Once you are past that stage the symmetry starts paying you back. There is no wrong way round. The blade does not need orienting before a trick because both faces present the same. Flippers who move to a dagger after years on single edges usually describe it as the knife having fewer opinions.
The 220g helps here too. Mass at the handles keeps a rollover turning through the whole arc rather than dying at the top.
Order it blunt first
The trainer option is above Add to Cart. Same steel, same weight, same balance, bevels left unsharpened. On a two edged knife this is the sensible order of operations rather than a beginner’s compromise, and plenty of experienced flippers keep a blunt one on the desk and the sharp one in the drawer.
Fitted leather sheath included. US shipping is free, worldwide is a flat $49 regardless of order size. Pivot setup is in the knife care guide, and the trainer guide covers the rest.
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