Tobisho Professional Pruning Secateurs Total Length & Blade: 200mm/ 64mm High-Grade Japanese Carbon Cutlery Steel [Machine-Forged & Hand-Finished / Hollow Ground Back / Twisted Blade / Screw Joint / Full-Size Ergonomic Geometry]

Description

Handcrafted in Yamagata Prefecture by Tobisho (Tobizuka Shears Works), the SR-1 200mm (Model 375) is a flagship Japanese bypass pruning shear acclaimed by professional fruit growers, arborists, and landscapers for its exceptional cutting power, smooth operation, and long-lasting razor edge.

Unlike standard mass-produced shears, the SR-1 series features full-steel forging made entirely from high-grade Japanese high-carbon cutlery steel (approx. 1% carbon content). While full-steel forging with high-carbon steel is traditionally challenging due to wear on drop-forging dies, Tobisho perfected this technique to achieve a tool that is extraordinarily hard, holds a razor-sharp bite over extended heavy use (Nagagire), yet feels surprisingly light and balanced in the hand. The precision shape is die-forged and then meticulously finished by hand across over 200 processing steps—including heat treatment (~800°C), distortion alignment, edge grinding, and final crossover tuning—by master blacksmiths.

Key Features & Craftsmanship:

 3D Curved Urasuki (Hollow Ground Back): The back of the main cutting blade is precision-ground into a subtle three-dimensional concave curve rather than a flat surface. This dramatically reduces friction between the blades, prevents tree sap (Yani) and pitch buildup, and maintains effortless cutting action under demanding field conditions.

 Precision Hinari (Crossover Alignment): The counter-blade incorporates a subtle twist angle (Hinari), ensuring the cutting edges meet at an exact single "point" rather than across a broad surface as they close. This enables clean, razor-sharp shearing through live wood with minimal hand pressure, leaving smooth branch cuts that promote tree healing and prevent disease.

 SR-1 Full-Size Ergonomics: Measuring 198mm in overall length with a 64mm blade (from bolt center), the SR-1 profile features an enlarged, ergonomic handle contour designed for medium to larger hands. It delivers optimal leverage for cutting thicker branches with maximum efficiency and minimal hand fatigue.

 Traditional Brass Catch (Kana-dome): Finished with a classic brass bottom handle latch to lock the handles securely when not in use.

Product Specifications

 Brand: Tobisho / Tobizuka Shears Works (Yamagata, Japan)

 Model: SR-1 Professional Hand-Forged Pruning Secateurs 200mm Brass Catch (Model 375)

 Total Length: 200mm

 Blade Length: 64mm (from bolt center to blade tip)

 Weight: Approx. 240g–250g

 Steel: High-Grade Japanese High-Carbon Cutlery Steel (~1% Carbon, Full-Steel Forging)

 Manufacturing Process: Die-Forged Base with Master Hand-Finishing (Over 200 Hand Steps)

 Blade Engineering: 3D Curved Precision Urasuki (Hollow Ground Back) & Hinari Crossover Alignment

 Handle / Lock: Full-Size Ergonomic Handle with Traditional Brass Bottom Latch (Kana-dome)

 Joint Hardware: Precision Bolt & Nut Assembly

 Key Benefits: Full Carbon Steel Construction / High Edge Retention & Durability / Sap-Resistant Shearing Action / High Leverage with Fatigue-Free Balance

 Origin: Made in Japan