Diameter range of standard end mill is 3 to 3-1/2".
Hardened and ground.
For Bridgeport type mills.
Drawbar end thread is 7/16"-20.
Shipping Weight: 2.76 lbs
Many metalworking products contain metals that are included in
the latest Prop 65 warning. Exposure to the elements can be
harmful. May cause cancer and reproductive harm.