Dojo weapons: katana, bokken and naginata. 打刀（Katana / Катана / 刀 / 카타나）、薙刀（Naginata / Нагината / 薙刀 / 나기나та）

Dojo Equipment & Craft

Equipment & Weaponry

Weapons crafted and recommended by the dojo: kekki and oak bokken, calibrated in length, weight and balance to headquarters specifications.

General Standards

General Weapon Standards

Authentic Classical Form

Strictly replicated to Katori Shinto-ryu headquarters parameters. Blade curvature (Sori) and cross-section profiles are engineered specifically for the kinetic logic of Katori Shinto-ryu Kata, distinctly set apart from generic Kendo practice equipment.

Precision-Calibrated Balance

Repeatedly calibrated to align perfectly with the school's rigorous demands for core power transmission and blade-tip control, effectively relieving wrist strain during high-frequency paired practice.

Dual Timber Selection

Japanese Oak and Ironwood: Oak is the classic martial-arts timber, whose grip only improves with age; Ironwood is extremely dense (sinks in water) and approximately 20% heavier, ideal for weighted paired practice and power conditioning.

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Ⅰ. Craftsmanship & Specifications

Authentic Katori Shinto-ryu Specifications

Strictly replicated to headquarters parameters. Blade curvature (Sori) and cross-section profiles are engineered specifically for the kinetic logic of Katori Shinto-ryu Kata, distinctly set apart from generic Kendo practice equipment.

Precision-Calibrated Balance Point

Kiln-Dried Stability

Professionally kiln-dried with stabilized moisture content, dramatically reducing the risk of warping or cracking across varied global climates and international shipping.

Hand-Finished Natural Grip

Hand-sanded through multiple stages to preserve the natural porosity of the wood. Delivers a refined, tactile grip that remains naturally slip-resistant when sweating, eliminating the need for grip tape.

Full Oval Grip Cross-Section

Shaped with a full oval cross-section to meet the practical mechanics of grip alignment and edge-angle control across classical stances (Kamae).

Signature Deep-Engraving & Collectibility

Selected for natural, fluid grain patterns—making each piece both an uncompromising practice instrument and a collectible work of classical art. Every weapon comes default with deep-engraved characters 【香取神道流】, with optional custom pattern engraving available upon request.

Acoustic Feedback & Field-Tested Reliability

High-density timber yields a crisp, solid sound upon blade impact, offering distinct feedback and combat rituality. Every batch is rigorously field-tested in live paired drills by senior practitioners.

Ⅱ. Timber Selection

Japanese Oak

Aesthetics & Tactility

Elegant light grain—the most classic and traditional material for Japanese martial arts equipment.

Mechanical Properties

Highly dense yet resilient fiber structure that absorbs impact energy rather than snapping cleanly under heavy strikes.

Patina & Aging

Over years of practice, perspiration yields a deep, rich brownish patina. Anti-slip grip improves over time, embodying the true spirit of a tool that grows better with age.

Ironwood / Ipe

Aesthetics & Tactility

Deep brown with a subtle metallic luster, featuring a bold texture that exudes the formidable presence of authentic battlefield weaponry.

Mechanical Properties

Known as "Ironwood" for its extreme density (sinks in water). Exceptional hardness leaves it virtually immune to denting or edge deformation under heavy impacts, preserving its shape indefinitely.

Training Utility

Approximately 20% heavier than Japanese Oak. An ideal heavy-resistance training instrument for practitioners seeking structural stability, power penetration, and physical conditioning.

Category Overview

Tachi / Katana

Authentic Kopan Grip & True Blade Dynamics

The handle features an elliptical Kopan cross-section that conforms naturally to the contours of the hand. Micro-adjusted over years of practitioner feedback, it faithfully replicates the true handling dynamics and grip mechanics of an authentic Japanese sword for precision control.

Subtle Sori Profile & Exceptional Tip Control

Engineered with a moderate curvature (Weak Sori), this profile provides fluid cutting momentum while delivering exceptional blade-tip alignment. Enables effortless transitions between rapid engagements and thrusting counter-techniques (Tsuki).

Decade-Tested Structural Durability

As the core weapon most frequently used in Tenshinsho-den Katori Shinto-ryu, its geometry has been refined through over a decade of continuous high-intensity Kata practice, achieving the ultimate balance between intuitive handling and impact resistance.

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Tachi / Katana (Oak Edition) in Japanese Oak — detail 4. 打刀（Katana / Катана / 刀 / 카타나）

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Tachi / Katana (Oak Edition)

Tachi · Japanese Oak

Japanese Oak

Key Features

Headquarters-TestedClassic Resilience BalanceSuperior Ergonomic Grip

Total Length: 97 cm
Handle Length: 25 cm
Blade Length: 72 cm
Weight: 550 g (±5%)

The Dojo's Long-Term Benchmark

As the core weapon subjected to the longest period of practical Dojo testing, this Japanese Oak Tachi strictly adheres to headquarters specifications while incorporating years of practitioner feedback. The handle geometry, blade curvature, and cross-section have undergone iterative refinements to achieve an exceptional balance between total mass and dynamic handling.

Dignified Japanese Oak Heartwood

Crafted from selected Japanese Oak heartwood with a clean, uniform grain, combining superior elasticity with high impact resistance. Perfectly suited for long-term, high-intensity Kata practice, it develops a dignified natural patina over time. Comes standard with deep-engraved characters 【香取神道流】.

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Tachi / Katana (Ironwood Edition)

Tachi · Ironwood / Ipe

Ironwood / Ipe

Key Features

Heavyweight EditionResolute Structural ForceHigh-Density Anti-Oxidation

Total Length: 97 cm
Handle Length: 25 cm
Blade Length: 72 cm
Weight: 675 g (±5%)

Specialized Heavyweight Development

Inheriting the exact classical geometry of the Oak version, this Ironwood variant undergoes meticulous hand-polishing. Weighing approximately 100g heavier, its extreme timber density yields a deep, sophisticated dark brown finish.

Forging Bold and Resolute Swordsmanship

Leveraging the physical properties of Ironwood, this heavy variant is virtually immune to warping or oxidation while offering superior structural rigidity. Engineered specifically for practitioners seeking heavier resistance, structural strengthening, and a commanding expression of classical swordsmanship.

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Category Overview

Kodachi

Exceptional Instantaneous Acceleration

Dynamic balance tailored specifically for Kodachi and dual-sword (Ryoto) forms. An ultralight framework (275g–330g) eliminates wrist strain during high-speed exchanges, enabling lightning-fast parries and counter-thrusts.

Close-Quarters Advantage

Golden ratio dimensions (39cm blade / 15cm handle) prevent interference during tight blade binds and close-range exchanges (Tsubazeriai), while maintaining tight, unyielding defensive coverage.

Precision Tip-Control Feedback

Featuring a center of gravity positioned precisely at 10cm, perfectly accommodating the absolute point-control required of short weapons. Provides immediate, responsive feedback for micro-adjustments along the line of attack.

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Kodachi (Oak Edition)

Kodachi · Japanese Oak

Japanese Oak

Key Features

Agile & ResponsiveZero Inertial LagSeminar/Intensive Workshop Spec

Total Length: 54 cm
Handle Length: 15 cm
Blade Length: 39 cm
Weight: 275 g (±5%)
Balance: 10 cm

Ultimate Agility & Zero-Lag Response

Combining a compact frame with the lightweight, resilient physical properties of Japanese Oak, this Kodachi exhibits virtually zero inertial lag. Designed for rapid parries, flicks, and precision counter-thrusts in Kodachi and Ryoto (two-sword) forms, enabling instant penetration into subtle openings.

Endurance & Form Preservation

Practicing short sword and dual-sword techniques places immense strain on physical endurance. The 275g balance minimizes wrist fatigue, allowing practitioners to maintain razor-sharp form and precision throughout hours of intensive seminar workshops.

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Kodachi (Ironwood Edition)

Kodachi · Ironwood / Ipe

Ironwood / Ipe

Key Features

High-Impact StabilitySuperior RigidityClose-Quarters Defensive Dominance

Total Length: 54 cm
Handle Length: 15 cm
Blade Length: 39 cm
Weight: 320 g (±5%)
Balance: 10 cm

Absolute Defense & Structural Rigidity

The additional weight (~320g–330g) translates into formidable parrying stability. When absorbing a full-power overhead strike from a long sword (Tachi), the Ironwood Kodachi dampens impact vibrations, instilling physical and structural confidence in defense.

Close-Quarters Pressure & Impact Dominance

Classical forms demand uncompromising hard-block parries against longer weapons. Ironwood's extreme density ensures the blade remains unyielding upon impact. Its solid presence exerts immediate psychological and kinetic pressure on the opponent during tight binds.

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Category Overview

Bō

Substantial Rigidity of Ironwood & Japanese Oak

Crafted from selected high-density hardwoods, offering exceptional shock absorption and structural flexural strength. Effectively dampens excessive impact vibrations during heavy weapon contact to protect wrist joints.

Symmetrical Center-of-Mass Balance

Engineered to the standard six-shaku (~182cm) proportion with a precisely centered balance point. Ensures absolute handling symmetry across both ends—whether executing lightning-fast double-ended thrusts, wide sweeping strikes, or continuous binding parries.

Unified Extension of Kinetic Power

Finely polished to provide a smooth, friction-free grip during high-frequency hand switches and slide-thrusts. Transfers core bodily force directly to the tip without energy loss, combining expansive reach control with devastating precision.

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Bō (Oak Edition)

Bo · Japanese Oak

Japanese Oak

Key Features

Classic Dojo BenchmarkAll-Stage TrainingSmooth Sweat-Absorbing Finish

Total Length: 182 cm
Diameter: 3.0 cm
Weight: 1100 g (±5%)

Classic Dojo Benchmark

Crafted strictly to the traditional six-shaku (~182cm) specifications of the Shinbukan Headquarters. Made from dense Japanese Oak heartwood, it features balanced weight distribution and superior resilience—suitable for practitioners across all training stages.

Sweat-Absorbing & Evolving Patina

Finely polished with a non-sticky finish that efficiently absorbs palm perspiration during intense practice. Over time, friction and sweat yield a smooth, protective natural patina that enhances anti-slip control, becoming increasingly fluid in hand.

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Bō (Ironwood Edition)

Bo · Ironwood / Ipe

Ironwood / Ipe

Key Features

Heavyweight ConditioningSolid Unified-Power TrainingCore Power Penetration

Total Length: 182 cm
Diameter: 3.0 cm
Weight: 1700 g (±5%)

Heavyweight Conditioning Instrument

The pinnacle of heavy long-shaft weapons. Incorporating Ironwood's extreme density yields a mass of 1.7kg. It delivers an intense, commanding feel in hand, demanding superior core strength, stance stability, and joint alignment.

Premier Instrument for Unified Power Delivery

Engineered specifically for overcoming strength plateaus and forging unified kinetic body mechanics (Zhengjin). Its massive momentum compels the user to engage the hips and core rather than relying on isolated arm strength—making it a core training tool for building structural force and penetrating impact.

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Category Overview

Naginata

Strictly Faithful to Shinbukan Specifications

Crafted in precise accordance with the original parameters of the Shinbukan Headquarters in Narita, Japan. Preserves the authentic profile and proportions of the traditional O-Naginata, offering handling dynamics identical to those used in headquarters demonstrations.

Authentic Momentum of Classical Polearms

Retains the natural mass distribution of heavy classical polearms. The iconic synergy of the curved blade head and extended shaft allows practitioners to harness pure kinetic momentum during sweeping strikes (Nagi) and binding defenses—forging true body mechanics and kinetic transfer.

Time-Tested Shaft Profile and Ergonomics

The shaft diameter, cross-section, and surface finish are meticulously shaped to classical standards. Ensures secure hand-sliding during rapid exchanges, push-pull maneuvers, and large rotational arcs without slipping.

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Naginata (Ironwood Heavyweight Edition) in Ironwood / Ipe — detail 4. 薙刀（Naginata / Нагината / 薙刀 / 나기나타）

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Naginata (Ironwood Heavyweight Edition)

Naginata · Ironwood / Ipe

Ironwood / Ipe

Key Features

Heavy Polearm SpecConcealed MassMaster-Level Benchmark

Total Length: 254 cm
Handle Length: 200 cm
Blade Length: 54 cm
Weight: 2750 g (±5%)

Authentic Profile with Concealed Heavy Mass

This Naginata strictly mirrors the traditional O-Naginata profile of the Shinbukan Headquarters, maintaining identical visual dimensions without physical thickening. Crafted from extreme-density Ironwood, it achieves a mass of 2.75 kg (~1 kg heavier than standard models)—making it a master-level heavyweight instrument.

Ultimate Test of Fluidity and Body Mechanics

The immense mass delivers devastating sweeping momentum while demanding extraordinary core strength and stance control. The practitioner must command a 2.5-meter heavy polearm while flawlessly executing the elusive, lightning-fast trajectory changes unique to Katori Shinto-ryu Naginatajutsu. It stands as the ultimate instrument for senior practitioners to refine body mechanics and weapon control.

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Craft Note

On Choosing a Weapon

A classical bokken is not a one-size item: length, weight and balance must match the student's height, grip and discipline. Training bokken are provided during initial sessions; for personal purchases, consult your instructor before ordering.

Shipping

International Shipping

Our Etsy and Creema shops ship worldwide with tracked international delivery.