Pro R8 1-1/2″ Face Mill Holder ~ Diameter for Bore in Shell End Mill: 1-1/2″ ~ Diamater Range of Standard End Mills 2 1/4 to 2 3/4″ ~ Maximum RPM is 8,000 ~ T.I.R. <= .0002″ ~ Superior Finish ~ Made of 20CrMnTi alloy steel ~ Electrolysis nickel coating ~ Premium hardened & all ground body for extended tool life. Diameter for Bore in Shell End Mill: 1-1/2″ Diamater Range of Standard End Mills 2 1/4 to 2 3/4″ Maximum RPM is 8,000 and the T.I.R. <= .0002″ Made of 20CrMnTi alloy steel with electrolysis nickel coating. Premium hardened & all ground body for extended tool life.
