5 Piece R8 End Mill Holder Set (3/16~3/4")

5 Piece 3/16-3/4" R8 End Mill Holder Set ~ Hardened and ground. ~ For Bridgeport type milling machines. ~ For double and single end mills (single end mills only for sizes over 5/8"). ~ Drawbar end thread is 7/16"-20. ~ Includes 3/16", 3/8", 1/2" 5/8" and 3/4".