Advanced Blade - FC / GC Series
Below 240mm length saw with 2.5mm gap between the teeth (S type) is
recommended for cutting small branches less than 10cm diameter. Due to the
distance between the teeth, this saw works especially for precision pruning
such as grafting.
Hardness: 900HV - 950HV (HRC 67 - 68 degrees) Impulse hardening: The razor sharp edges combined with impulse hardening make for the teeth that will last three times longer than conventional teeth and it is most suitable for cutting tough dry wood.
Cross-section of saw blade showing relationship between blade and material being cut. Friction is minimized by the tapering of the blade.
Traditional wood saws have their teeth bent out or “set” so that only the teeth touch the wood and there is less friction between the wood and the side of the blade. This style of blade needs to make a wide cut and therefore takes more time and energy.
Taper ground blades give the same effect but have and even taper from the teeth to the back of the blade and this allows the blade to be thinner (see diagram (a)). A thinner blade makes cutting faster and easier.
The curve of the blade has been designed specifically to make cutting above shoulder height easier. The precision ground teeth have been designed to keep the cutting action consistent along the full length of the pull stroke. This design is unique to Samurai and makes this blade probably the most efficient and user friendly in the world.
Computer controlled grinding machines produce Taper-Ground blades with greater thickness on the teeth edge making the set of the teeth unnecessary.
Hard chrome plated finish is rust proof, friction free and produces a smooth cut surface similar to a planed surface. Teeth are sharpened by whetstone to produce a super sharp cutting edge far superior to the cut of saws with teeth sharpened by conventional filing. The sharpness is equal to that of a high quality knife.
Permanently filed teeth have been subjected to precision controlled electronic impulses (Impulse hardening); which heat and harden only the cutting edge of each individual tooth, making sure the razor sharp cutting edge stays sharp cut after cut. Typically an impulse hardened blade will last three times longer than a conventional none impulse hardened blade.