SOLID LEFTY

Improved sense of stability with a handle that has a new balance design that places the center of gravity closer to your hand, reducing wobbliness while cutting. Tireless, with maximum sharpness.

Size : 5.5INCH6.0INCH6.5INCH7.0INCH
Use : BLUNT
Material : Extramarise II Cobalt Alloy
5.5INCHBlade length : 55mm
[Bottom blade] Ring size:horizontally/15mm・vertically/20mm
[Top blade] Ring size:horizontally/17mm・vertically/18mm
Product number : #104299
6.0INCHBlade length : 63mm
[Bottom blade] Ring size:horizontally/15mm・vertically/20mm
[Top blade] Ring size:horizontally/17mm・vertically/18mm
Product number : #104301
6.5INCHBlade length : 75mm
[Bottom blade] Ring size:horizontally/15mm・vertically/20mm
[Top blade] Ring size:horizontally/17mm・vertically/18mm
Product number : #104303
7.0INCHBlade length : 88mm
[Bottom blade] Ring size:horizontally/15mm・vertically/20mm
[Top blade] Ring size:horizontally/17mm・vertically/18mm
Product number : #104305

A collaboration of these wild guys and professors!

The new Ph.D. collaboration monster SOLID is amazing!
1.Well-balanced scissors with our G-SHIFT wobble prevention functionalityfor comfortable handling
When using scissors that can’t fix the handle in place and don’t have good balance, it takes extra effort to prevent wobbling. For stylists who open and close their scissors hundreds of times in a single day, even the slightest extra work can cause problems like tendovaginitis. With the innovative new “G-SHIFT” design, the scissors’ center of gravity is shifted closer to the hand, while keeping the balance set and avoiding increased centrifugal force during opening and closing operations. Together with the new handle that molds perfectly to your hand, these elements stabilize the blades, and prevent wobbling during cutting.
SOLIDの重心
We investigated muscle activity in the hand at the Chiba Institute of Technology.
Source: Yukari Aoki, “Effects of the Way Styling Scissors are Held on Usability” (Ueno Laboratory, 2011 Graduate Study)
2.Thrust Bearing design for ultra smooth operation that won’t tire you out
The joint section has the important role of joining the blade and the handle, and in these scissors, it’s fitted with 9 precision ball bearings. Thanks to this design, the movement is smooth as silk.
THRUST BALL BEARING
3.Powerful and long-lasting: Extramarise® Processing
The new SOLID uses our proprietary Extramarise® Processing, a unique hardening process based on thorough temperature management that brings out the characteristics of the materials to the greatest extent possible. This process gives the scissors the hardness they need, as well as sufficient durability. This time, with the cooperation of the metals engineering expert Dr. Asakura, we’ve analyzed the structure of the SOLID’s raw material following the proper heat treatment processing. Comparing the SOLID’s treated material with other untreated materials, the difference is obvious. The results of this analysis proved that heat treatments can make a huge difference in scissors’ working life.
Extramarise® Processing
Extramarise® (registered trademark), is a proprietary heat treatment process* ideally suited to haircutting scissors, developed by Mizutani using data and experience accumulated over a period of more than 90 years to balance the three required properties for a good blade: structure, blade angle, and hardness.
Heat Treatment Process
The metals used for edged tools change a great deal depending on the heat treatment used. Proper heat treatment for each material must be carried out in order to fully draw out the properties of rare metals within it, such as cobalt, molybdenum, and vanadium.
Perhaps you’ve heard the term “heat tempering” before. The metals used for scissors don’t initally have sufficient hardness for this use. The stainless steel used in scissors is first heated to over 1000°C, then rapidly cooled to achieve the required hardness. This process is called “hardening.” (For Stellite and other cobalt alloys, different temperatures may be used.) Also, with only hardening, the metals are hard enough, but extremely brittle, so they undergo a “tempering” process to achieve greater durability. For even higher quality edged tools, a further treatment called “sub-zero processing” subjects the metals to a temperature of -100°C or below using materials such as liquid nitrogen in between hardening and tempering to prevent structures that have not completely undergone martensitic transformations (retained austenite) from causing deformations in the course of use (changes occurring over the course of several years).
“Hardening,” “tempering,” and “sub-zero processing” can be combined in an infinite number of ways, and carrying out the ideal combination for high-grade materials to bring out their latent properties to the greatest extent requires an abundance of knowledge and experience. Through the Extramarise® process, developed at Mizutani through analysis of massive volumes of data and experience, we provide metals which leverage the materials of their constituent elements effectively.
The inside of heat treat furnace
We investigated the structure of the SOLID 
at The University of Tokyo.
Yoshiyuki Ueno, Doctor of Engineering
Chiba Institute of Technology, Professor of Department of Design

Yoshiyuki Ueno, Doctor of Engineering

Societies : Member of the Board of Directors, Japan Society for Interior Studies Member of the Board of Directors, Japan Society for Office Studies Member of the Board of Directors, Japan Toilet Association etc.
Research Fields : Measurement of human bodies and movements, physiological measurement; ergonomic design for chairs, seats, beds; ergonomic design for sink areas for kitchens and bathrooms; ergonomic design for writing materials and other tools; etc.
Publications : “Building a School Bathroom Together: Removing the Barriers in Our Hearts” (School Toilet Research Society), “Illustrated Ergonomics” (Japanese Standards Association), “Interior Planning and Design” (Shokokusha)
Dr. Kentaro Asakura, Engineering
Department of Materials Engineering at the School of Engineering, The University of Tokyo (Part-time instructor at the Tobu College of Medical Technology)

Dr. Kentaro Asakura, Engineering

Research Fields : Ultra-supercritical pressure power generation systems, multi-layer steel sheeting for automotive uses, material analysis and development using electron microscopes, etc.
Publications (Separate Volumes) : Talking about Microscopes and Talking about Non-Woven Fabrics (Japanese Standards Association), 5-volume microscope series including Macro Observation and New Microscope Q&A and All About Edged Tools (Agne Gijutsu Center).
EXTRAMARISE
EXTRAMARISE
EXTRAMARISE® is a proprietary heat treatment ideally suited for haircutting scissors that was developed by MIZUTANI based on long years of accumulated data and experience. The same steel material can have totally different performance depending on the heat treatment used. Therefore, to maximize the special qualities of the rare metals (cobalt, molybdenum, vanadium, etc.) we’ve added to our products to the greatest extent possible, and achieve the ideal metal for scissors, (*hardening, tempering, sub-zero processing) and other complete temperature management procedures are essential. To bring out the distinct characteristics of materials, and manufacture a blade with the ultimate strength required for haircutting scissors, we at MIZUTANI have implemented our own proprietary heat treatment using the ideal temperature for scissors: EXTRAMARISE® processing.
THRUST BALL BEARING
THRUST BALL BEARING
These are small, precision metal ball bearings with excellent axial load-bearing ability. Due to their design, which enables radial load-bearing as well, scissors open and close smoothly, which both lessens burden on the hands and contributes to a long cutting life. With anti-rust properties and durability as a matter of course, these bearings are a Japanese-made product.
ORGANIC DESIGN
ORGANIC DESIGN
The handles are so designed that they look nonmetallic, alive and organic. You may feel some warmth from the three-dimensional, twisted handles, and once touched, you would not like to part them from your hand.
DISK DRIVER
DISK DRIVER
Compact and easy to turn, this is a flat type driver for UFO screws. This screwdriver is included with all scissors with the mark shown.
* BLACK-SMITH® is registered trademark of MIZUTANI SCISSORS in Japan.