Blade grinded with a square section then twisted in order to obtain cutting power and flexibility. Helix angle higher than on reamer.
Conicity of 2%. ..
Blade grinded with a square section then twisted in order to obtain cutting power and flexibility. Helix angle higher than on reamer.
Conicity of 2%. ..
Blade grinded with a square section then twisted in order to obtain cutting power and flexibility. Helix angle higher than on reamer.
Conicity of 2%. ..