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Lucky Koi Katana – Uzi Forged Sanbonsugi Blade
Product Introduction
The Lucky Koi Katana is auspicious fortune-themed oriental samurai sword, separated from beast, military and floral sword lines. Koi fish symbolizes wealth and good luck in traditional Japanese culture, ideal for study display, tea room decor and auspicious cultural gifts. The blade adopts professional Uzi layered forging steel, processed by Tsuchioki clay temper craft to form neat sanbonsugi wave hamon, standard shinogi-zukuri profile with real yokote line, no blood groove, multi-stage taganeha mirror polishing, factory light sharp edge only for slow drawing static display, heavy cutting is forbidden.
All metal fittings are copper base with gilt silver koi relief craft, including hollow wave carved tsuba, koi patterned fuchi & kashira and matching mini koi menuki. The oval imogata tsuka uses genuine natural ray skin inner lining, wrapped with brown moro-hineri diamond cotton ito. Scabbard is solid hardwood with glossy black natural lacquer, hand-painted red & golden koi landscape patterns, full cow horn koiguchi, kurikata and kojiri sheath fittings, matched golden ronin knot sage cord. This katana adopts dual bamboo mekugi removable full tang, easy to split for regular blade anti-rust maintenance. Premium gift box, storage bag, wooden sword stand and maintenance kit are provided as free full accessories; custom koi blade engraving upgrade service available.
Core Selling Advantages
- Exclusive lucky koi fortune positioning, different from tiger, dragon, military replica sword series
- Professional Uzi multi-layer forged steel blade, collectible sanbonsugi temper grain
- Full set gilt silver koi metal hardware, unified aquatic auspicious visual system
- Hand-painted vivid red & golden koi black lacquer scabbard, unique hand craft texture
- Complete natural cow horn sheath three-piece fittings, wear-resistant with aging luster
- Removable dual bamboo peg tang, convenient daily blade maintenance
- Complete premium gift package, perfect fortune gift for sword collectors
Complete Official Original Specifications (All dimensions & materials fully retained without omission)
| Parameter Item | Parameter Value |
|---|---|
| Zencho Total Full Length | 104cm / 40.9inch |
| Hacho Effective Blade Length | 73cm / 28.7inch |
| Tsuka Handle Length | 26.5cm / 10.4inch |
| Sori Blade Curvature | 1.7cm / 0.66inch |
| Sakikasane Tip Thickness | 0.4cm / 0.15inch |
| Motokasane Root Thickness | 0.7cm / 0.27inch |
| Sahihaba Tip Width | 2.3cm / 0.9inch |
| Motohaba Root Width | 3.15cm / 1.24inch |
| Kissaki Nagasa Tip Length | 3.7cm / 1.45inch | Boshi Tip Shape | Jizo Style |
| Mizuheshi Heat Treatment | Tsuchioki Clay Tempering |
| Hamon Temper Pattern | Sanbonsugi Wave Hamon |
| Blade Raw Material | Uzi Multi-Layer Forged Steel |
| Hi Blood Groove | No Hi (No Groove) |
| Blade Forge Structure | Maru-gitae Solid Forge |
| Blade Profile | Shinogi-zukuri |
| Yokote Reinforcement Line | Real Embossed Yokote |
| Tang Disassembly | Fully Removable Full Tang |
| Mekugiana Peg Holes | Two Peg Holes |
| Mekugi Fix Pegs | Natural Bamboo Pegs |
| Fuchi & Kashira Material | Copper Base Gilt Silver Koi Relief |
| Tsuka Wrap Craft | Moro-hineri Brown Cotton Ito |
| Tsuka Inner Lining | Genuine Natural Ray Skin Samekawa |
| Menuki Side Ornaments | Copper Gilt Silver Mini Koi Pattern |
| Seppa Blade Washers | Solid Copper Alloy |
| Tsuba Hand Guard | Hollow Wave Koi Copper Gilt Silver |
| Habaki Blade Collar | Solid Copper |
| Saya Scabbard Base | Solid Wood Gloss Black Natural Lacquer, Hand Painted Koi Art |
| Koiguchi Sheath Mouth | Natural Cow Horn |
| Kurikata Cord Ring | Natural Cow Horn |
| Kojiri Sheath End Cap | Natural Cow Horn |
| Sageo Binding Cord | Golden Ronin Knot Woven Cotton |
| Shitodome Fitting | Alloy Material |
| Free Full Gift Set | Luxury Gift Box + Katana Storage Bag + Wooden Sword Stand + Maintenance Kit |
| Total Full Set Weight | 1430g / 3.15lbs |
| Desheath Blade+Handle Weight | 1052g / 2.31lbs |
| Blade Sharp Option | Fully Sharpened / Unsharpened Optional |
| Custom Blade Carving | Koi Pattern Custom Engraving Upgrade Available |
| Handmade Reminder | All handmade swords have slight dimension & painting deviation for reference only |
Katana Parts Names and Terminology Guide
Complete nihonto vocabulary for lucky koi fortune sword collectors:
KASHIRA: Gilt silver koi pommel cap
MENUKI: Mini koi copper side ornaments
TSUKAMAKI: Brown moro woven grip wrap
FUCHI: Koi pattern copper grip ring
TSUBA: Hollow wave koi hand guard
HABAKI: Solid copper blade collar
KOIGUCHI: Natural cow horn sheath mouth
SAGEO: Golden ronin knot binding cord
KURIKATA: Cow horn cord ring
SAYA: Black lacquer hand painted koi scabbard
KOJIRI: Cow horn sheath bottom cap
This chart shows uzi steel & sanbonsugi temper parameters. If you need custom koi engraving, visit Custom Blade Customization
Frequently Asked Questions
Q: What cultural meaning of koi katana?
A: Koi fish stands for fortune, wealth and good luck in oriental culture, completely different from wild beast, military themed swords.
Q: What’s Uzi forged steel advantage?
A: Multi-layer folded forging forms stable uniform temper grain, better texture than single T10 steel for collection purpose.
Q: Will hand-painted koi pattern fade?
A: Multi-layer baked lacquer craft, avoid long-time direct sunlight to prevent color loss.
Q: Can this koi blade cut thick bamboo continuously?
A: Polished blade surface easy to scratch, only light drawing display training allowed.
Q: Similar wild beast themed collectible katana reference?
A: View jungle tiger painted samurai sword: Jungle Tiger Katana.
Browse all handmade themed samurai swords in Handmade Katana Collection.
Master full nihonto terminology via Katana Parts & Terminology Guide.
All orders support free US shipping and 30-day hassle-free return policy.
Katana parts names and terminology
Katana parts names and terminology
In the world of Katana, Katana parts names and terminology are very important as most of the Katana parts names use Japanese vocabulary and special nouns. This page can help you understand Katana faster.


A.SAKIKASANE Thickness of blade tip.
B.MOTOKASANE Thickness of the bottom of the blade.
C.KISSAKI NAGASA Length of tip.
D.SAKIHABA Width of blade tip.
E.MUNE The surface of the katana back.
F.MOTOHABA Width of bottom of blade.
G.MUNEMACHI The notch at the top of the blade stem,where the back surface (mune) of the blade begins.
H.HAMACHI A notch at the top of the blade,where the blade begins.
I.FUKURA The radian of the blade in the tip area.
J.BOSHI Blade text in the tip area.
K.YOKOTE The boundary between blade tip and blade body.
L.KOSHINOGI Shinogi-ji above the blade tip area (yokote).
M. MITSUKADO Intersection point of yokote and blade edge of blade body and blade edge of tool tip.
N.SHINOGI MITSUKADO Shinogi,Koshinogi und Yokote linien.
O.SHINOGI-JI Blade surface between shinogi and mune.
P.SHINOGI A chear straight line extending along the longitudinal direction of the blade is the thickest part of the blade (only appearing on katana of shinogi-zakuri) .
Q.JI The surface between shinogi and nioiguchi.
R.HA The edge area of the cutter body is hardened by quenching.
S.HASAKI Asharpened edge.
T.NIOIGUCHI A clear line separating the hardened blade from the softer part of the blade body.
U.ASHI Nioiguchi's extension line in the direction of the blade.
V.HACHO A straight line that determines the length of the blade.
W.SORI Degree of blade bending.
X.ZENCHO The total length of the katana,including the stem (the blade length is only the blade body).
Y.NAKAGO NACASA Length of katana stem.
Z.MAKUGIANA A hole in the shank for receiving Mekugi (bamboo nail for fixing the blade in the handle).
AA,MEI Inscription on the hilt (usually the name of the katana maker,but there are often other information).
Now that you have learned the terminology and proper nouns of katana through this article, you also design customize your ideal katana.
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