DRILLCO - 3/4,COBALT 4 FLUTE LONG LENGTH END-MILL - 675A148D

The greater red hardness of M-42 Cobalt end mills enables these tools to run about 10% faster than conventional HSS end mills. This translates to shorter machining times and permits higher utilization of available machine horsepower.
Made with premium grade cobalt to mill harder materials
Cobalt end mills can run about 10% faster than HSS
Center cutting tip for plunging, pocketing and holemaking
Multiple flutes (4 or 6) produce a better surface finish and less chatter
Bright finish for added lubricity
Extra long cutting length for additional reach and depth of cut