Drillpro 5pcs 4mm 4 Flutes Tungsten Carbide End Mill Cutter HRC55 AlTiN Coating End Mill Cutter
Material: Carbide tungsten steel base metal
Highest cutting hardness: HRC55
Shank diameter: 4mm
Blade Length: 8mm
Total Length: 50mm
Special four flute design provides small chip loads and quicker removal, more sharp.
AlTiN nano coating, hardness up to 55 HRC for general steel alloy steel mold steel.
Fit for milling from roughing to finishing one time(≤55HRC), reduce tool changing times.
Chamfer design, easy to install.
5pcs x 4mm HRC55 end mill cutter