Carbide End Mills(4Flutes Square End Mills Long Shank)

1.Industry leader 2.sharp and harden 3.long service life

Surface Hardness:Usually maked by Victor Scale standard(HV).The higher,the harder and better for difficult machining steels and other hard metals.

Coefficient Friction Ratio:The lower number,the better for the chip ejection.

Max.service temperature:The higher,the better for environments which require machining in high temperature or long time.

Coating structure:Monolayer has a stable structure and better strength against cutting force.Multilayer has the benefits for dispersing the cutting  to prevent breakup and affect tool body.

Grain Size:Indicate the original grain size of tungsten carbide.The smaller grain size, the better it will bind together and will be harder and more resistant against friction.

Cobalt Percentage:As the binder for carbide rods.In general, the higher cobalt percentage will lead a poor hardness for the carbide rods but with better traverse rupture strength.

Hardness:For tungsten caride,it is usually marked by Rockwell scale standard A(HRA) to distinguish it's hardness.The higher,the harder it will be for the carbide rods.

Carbide End Mills(4Flutes Square End Mills Long Shank)