The length of the cutting edge should be based allowance to be, at most, to participate in cutting edge length 2/3. Taking into account the impact of the main angle of the effective cutting edge length.

 

Select the blade blade levels of precision accuracy classes according to the machining operation, such as finishing, semi-finishing, roughing and other options in order to ensure the operational tasks completed under the premise of reducing processing costs. National standards are a total of 12 A ~ U accuracy level, turning common grade G, M, U. In general, use high-precision machining precision G-Class blade; finishing non-ferrous metal materials, semi-finished advised to use G-Class blade. Hardened (45HRC above) steel finishing G-Class blade can also be used. Finishing to heavy roughing can be used M-class, optional U roughing-class blade.