Grizzly G9324 Boring Combo Set, 3-Inch

Just like the individual boring heads these combination sets provide maximum rigidity even when the boring bar holder is used in an offset position. hardened and ground adjusting screws along with a wide base design guarantee a long life and trouble-free use. model g9322 includes: 2-Inch boring head r-8 shank with 7/8-Inch-20 tpi and 9-piece 1/2-Inch boring bar set. model g9324 includes: 3-Inch boring head r-8 shank with 1 1/2-Inch-18 tpi and 12-piece 3/4-Inch boring bar set.