UTSUMI Handmade Shears
UTSUMI Machine made - CNC (Computer Numerical Value Contorol)
   
 

HANDMADE

 

The Manufacturing Process of Utsumi handmade Jyo-Utopia
and NOVA brand shears

Material used I the manufacture hand-mad shears consists of an alloy of iron, chrome, carbon, cobalt and other materials. The style of the shears itself is simple, but achieving this simplicity requires a fine and high degree of skill from skilled craftsmen with many years of experience.

The Utsumi manufacturing process starts by welding together a stamped handle with the blade. This process determines the center of gravity of the implement and can only be accomplished by skilled veterans. The next step is rough shaping. The quality of the shears will be determined in this important process which involves grinding and smoothing of the weld and shaping the shears according to the product specification for width, length, surface and blade shape, hollow ground, and drilling the hole for the pivot.

The hollow ground part is the heart of the shears. It is the base of the "twist" when the shears are in the final finishing process. The "twist" enables the even distribution of the feedback force even hen you cut from the base to the tip of the shears. This process cannot be performed by a computer and requires skilled, and experienced human touch. Utsumi craftsmen have between 10 to 20 years of experience before they are qualified to handle this crucial step in the manufacturing process.

The final process removes any distortions and fine tunes the shears to approach the finished product. The hollow ground side of the shears are polished using a cloth buffing machine and sharpened by a disc stone. The hand sharpening involves several steps from coarse to fine which are applied to both blades. Finally, with the pivot screw installed, dynamic performance is adjusted and verified using a special instrument for fine tuning the completed product. A skilled professional will notice the quality of the handmade shears the moment they hold them in their hand.



These "Giant Shears" are on display at the factory, they actually have sharp edges.



 

Major steps to the completion for hand made shears.

There are approximately 60 steps for completing Utsumi's hand made shears. We show you here the major steps among them.

Manufacturing Process


Welding

Stamped handle portion and "cobalt" blade portion are welded ad then finger ring is adjusted.


Coarse Process

Removing welding bumps, shaping the shears according to the product specifications in width, length, surface, blade shape, and hollow ground using stone.


Edging

Adding edge for surface is done by circular stone, back side by coarse stone and fine stone.


Fine tuning

After pivot screw was placed, mating of stationary and moving blades are fine tuned by the special hammer.


Completion


   
   
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