BF-91 Otter D2 Tool Steel Original Filipino Balisong butterfly Knife
$139.70
An otter is never still in the water, and the BF-91 pairs D2 tool steel with jigged bone for grip.
Blade Materials – D2 Tool Steel
Handle Materials – Brass with Jigged Bone Inserts
Overall Length – 24cm
Blade Length -12cm
Weight – 180g
Hand-forged in the Batangas tradition
The balisong was born in Batangas, Philippines. Every knife in this catalogue is made by Filipino artisans and metalworkers, many from families with generations of experience, now working in the United States. Blades are ground from 440C stainless, D2 tool steel, VG10, high carbon and Damascus, and fitted to handles of kamagong ebony, carabao horn, Philippine deer horn and bone.
Checked four times
Detailed hand inspection, smoothness and pivot testing, blade alignment checks, and durability and finish quality control. If a knife doesn't meet our standards, it never reaches our customers.
Engraving available
Initials or short text $19 in the font you choose, a custom logo $29. Select it above Add to Cart and upload the logo file at checkout.
A sheath with every knife
Every knife includes a fitted leather sheath. Both live blades and trainers are offered, and every order ships worldwide with tracking.
Buying more than one?
Trade pricing starts at ten pieces and reaches 45% under retail at volume, with your logo on the bolster. See wholesale and bulk, or design one from scratch.
The BF-91 Otter is the jigged bone build in the D2 line — brass handles with textured bone inserts instead of the usual kamagong, on a 24cm frame with a 12cm blade. D2 is semi-stainless: it wears slowly and holds an edge through hard use, but it is happier oiled than damp.
Otters spend their day turning over in the water for no obvious reason, which is roughly what flipping a balisong looks like from the outside. The jigged bone helps — it keeps a grip when hands are less than dry.
Specifications
- Blade Materials – D2 Tool Steel
- Handle Materials – Brass with Jigged Bone Inserts
- Overall Length – 24cm
- Blade Length -12cm
- Weight – 180g
D2 tool steel at 58-60 HRC gives this one its character: a razor sharp edge for precision cutting, strong toughness, and excellent edge retention. A lightweight, compact knife that is ready for anything — small, but powerful.
Every knife is finished by hand, so grain, figure and polish vary slightly from piece to piece — no two are identical. Browse the full authentic Filipino balisong collection, or add custom engraving to make this one yours.
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Shipping and returns
Processing
Most orders ship in 1 to 3 business days.
USA delivery
4 to 8 business days, tracked door to door.
International
8 to 14 business days. Customs times vary by country.
Made to order
Out of stock pieces are handcrafted for you in 2 to 3 weeks.
We ship worldwide. The customer is responsible for customs, VAT and local legality.
Returns and exchanges Read the warranty
Blade Materials – 440c Stainless Steel
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