English
OLFA cutters are manufactured through a variety of processes before being delivered to our customers.
Here let us introduce the manufacturing process of our L-5, one of our most popular products.
OLFA cutters are manufactured through a variety of processes before being delivered to our customers. Here let us introduce the manufacturing process of our L-5, one of our most popular products.
An OLFA cutter is composed of various parts such as a blade, stainless-steel blade channel, plastic handle, and blade slider. Each of these parts has been ingeniously designed based on our knowledge and experience gained over many years of making hand tools. Then, these parts are assembled with the utmost attention to detail, and the final products are completed. That is why OLFA cutters are of high quality, easy to grip, easy to use, and excellent in sharpness.
Product
Based on the drawing, a large resin material is cut by an automatic cutting machine.
Machine-cut plastic is fine-tuned by hand. This process creates a shape that is easy to grip and comfortable to hold, the key features of OLFA products. Based on the prototype, improvements are made to shape it into its final form.
Blades
Steel material is set in a press machine. The pressing process makes holes, break lines, and engravings of the blades.
Heat treatment gives steel hardness and toughness suitable for blades.
Grinding is performed evenly from both the front and back sides of the steel.
Grinded blades are automatically processed into individual blades. The blades are coated with anti-rust oil and transferred to the assembly process.
Stainless-steel
The blade channel is manufactured by a method called “Progressive Press Process,” in which a single sheet of metal is punched out while shifting. The shape is finished by pressing after the progressive press process.
Yellow resin is poured into a mold in which a metal pick is set. Stainless-steel blade channels are inserted into the molded plastic resins.
Black resin is poured into the X-shaped part to complete the X-design handles.
Inspection, 
Completed parts are rigorously checked for dimensional accuracy and sliding properties before assembling main units.
In addition to the blade and handle, smaller parts for sliders are collected and assembled. The completed products are visually checked.
Products that have passed quality checks are packaged.
The products are shipped from Osaka to the world.
