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When all of the individual segments are used, the knife may be thrown away, or, more often, refilled with a replacement blade. This design was introduced by Japanese manufacturer OLFA in 1956 as the world's first snap-off blade and was inspired from analyzing the sharp cutting edge produced when glass is broken and how pieces of a chocolate bar ...
OLFA Corporation (オルファ株式会社, Orufa Kabushiki-gaisha) is a Japanese manufacturer of utility knives, founded in 1956 in Osaka, Japan. The name is derived from the Japanese words oru (折る, bend and break) and ha (刃, blade). The company is known for inventing the snap-off blade and the rotary cutter.
The knife is 10.25 inches (26.0 cm) in length, the blade is 5 inches (13 cm) in length, .1875 inches (4.76 mm) thick and constructed from 1095 carbon steel. [ 2 ] During the initial evaluation, an electrically insulated handle was considered to be desirable but not mandatory.
An OTF Knife, also known as an out-the-front knife, sliding knife, telescoping knife, or angel blade, is a pocketknife with a blade that opens and closes through a hole in one end of the handle. This design contrasts with the majority of utility knives, which are either standard folding knives or are "fixed blade" sheath knives (having no ...
Cutlery and Allied Trades Research Association (CATRA) is an internationally known research and technology organisation in Sheffield, England which specialises in knives, cutlery, tableware, metallic holloware (such as pans), shaving razors, industrial knives, blades and garden tools.
This nifty design was first introduced by the Japanese Olfa Corporation in 1956, drawing on inspiration from broken glass and segmented chocolate bars. simpson33/istockphoto Notches Between Tire ...