HHIP 1004-2625 S-STUCR/STFCR 10-2 Indexable Boring Bar (TS-2- Screw) Boring Bar Style 10-2; Shank 0.625"; Minimum Bore 0.812"; Length 10" Use Insert TCMT-21.51; Screw M2.5x6 Use TCGT or TCMT inserts; Torx Wrench T-8 0-Degree Lead Angle for Boring and Profiling, 7 degrees Relief Torx Wrench T-8