9PCS Boring Head R8 Set Hard Metal Boring Bar Set Morse Shank R8 Shank BT

2" Boring Head With R8 Shank.Head size: 2".Boring bar Hole: 1/2" Cross Hole Dia: 1/2".Maximum Offset: 5/8".Thread: 1.5"-18.Graduations: 0.001/0-50 Center Distance bt 2 bottom hole: 0.60" A micrometer lead screw provides 0.0001" direct reading accuracy and ease of adjusting Packing including:1pcs 2" Boring Head, 1pcs R8 Shank, 9pcs 1/2" Carbide Boring Bar,3pcs Allen Wrench