For grooves inside blind hole.
Standard Abrasives 875503, Buff and Blend GP Mounted Flap Brush, Very Fine, 3 in x 2 in x 1/4 in, 7000122256
Dynabrade 51605 6"-8" (152 mm-203 mm) Dia. Right Angle Two-Hand Rotary Deluxe Buffer
3M 64802, Scotch-Brite EXL Unitized Mounted Point, B52 x 1/8 in 8S FIN, 3M 7100068025
Standard Abrasives 875503, Buff and Blend GP Mounted Flap Brush, Very Fine, 3 in x 2 in x 1/4 in, 7000122256
Dynabrade 51605 6"-8" (152 mm-203 mm) Dia. Right Angle Two-Hand Rotary Deluxe Buffer
3M 64802, Scotch-Brite EXL Unitized Mounted Point, B52 x 1/8 in 8S FIN, 3M 7100068025
For grooves inside blind hole.
