3"Surface Sanding Kit. MAX : 20000 R.P.M. For QP-212, QP-213, QP-223, QB-625. Shank Type QB-9743K20A : 6 mm / QB-9743K20B : 1/4". Contents : Shank x 1PC (A or B). 3" Rollon Holder x 1PC. 3" Pad Die x 15PCS. 3" Sanding Disc x 3PCS. 3"Surface Sanding Kit