Description
The BMK-2013 sets a folded Damascus blade between hand-engraved copper panels and brass bolsters, with a toothed section behind the belly for cord and rope.
| Overall length | 8 inches |
| Blade length | 3.5 inches |
| Handle length | 4.5 inches |
| Steel | 1095 + 15N20 Damascus, 352 layers |
| Hardness | 58–60 HRC, oil tempered |
| Handle | Brass And Copper Handle |
Aimed at: the buyer who wants the Ultra Line finish on a knife that still has a working feature on the edge. At 8 inches open it is short enough to handle indoors without feeling absurd.
The serrated section
The teeth sit behind the belly, close to the pivot, where you have the most leverage and the least need for a clean slice. That is the correct place for them. Rope, webbing and packing strap part faster on a serrated section than on any plain edge, and putting them at the rear keeps the whole forward curve available for everything else. The consequence is a sharpening routine that needs a tapered rod rather than a flat stone, worked from the ground side only.
Copper, brass and the engraving
Two metals, cut by hand, with the pattern carried across both so the panels read as one piece when the handles are closed. Copper takes the graver cleanly and holds fine line work; brass is harder and gives the bolsters the wear resistance the ends of a balisong handle need. Both will darken with handling. The engraved grooves go first, which deepens the contrast rather than flattening it, so the knife looks better at two years than at two weeks.
How the blade is built
Layers of 1095 and 15N20 are forge welded, drawn, folded and welded again to 352 layers, then acid etched at the end. The two steels take the acid differently and the figure appears out of the steel itself rather than being applied to it. Hardness is held to 58–60 HRC, which is hard enough to keep an edge through real use and soft enough that the blade will bend before it breaks.
Care
High carbon and etched, so keep it dry and keep a coat of oil across both flats. Clear the serrations with a nylon brush rather than a rag, which will only shred and leave fibers wedged between the teeth. Leave the copper and brass alone unless you want them bright, in which case polish on a cloth does it in under a minute.
Worth asking
How is Damascus actually made? The forge welding process is set out step by step in how Damascus steel knives are made.
Does it need special sharpening? Yes, a little. Read Damascus knife care and sharpening before you touch a stone to it.
Is there a plainer Damascus balisong? The DB-12 Damascus balisong has the same blade construction without the engraving.
Model: BMK-2013
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Daniel G. (verified owner) –
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