This package carries (a)-(c):

Their arbor is 5/8"-11 Female Thread.

NOT M14 Thread.

(a) 1 Piece of F40 (40 mm / 1 1/2" ogee Bullnose)

HIGH GRADE METAL COVER Router Bit/Profile for 40 MM HIGH OR THICK CONCRETE STONE (5/8"-11 Female Thread arbor). 

(b) 2 Pieces of 4" / 100 mm Professional Grade Glaze Buffing Pad (they bring natural granite marble stone mirror like polished result).

(c) 78 Pieces of 4" / 100 mm Diamond Polishing Pad for granite marble concrete:

16 X Grit 50 100 200 400,

5 X Grit 800 1500,

4 X Grit 3000.

 And 1 Piece of 4" / 100 mm Velcro Backer/Pad Holder (5/8"-11 Thread arbor).

VERY IMPORTANT REMIND: Velcro Backer's max capacity is 5000 RPM. Please don't use it with high speed grinder/polisher.

-ideal speed of grinder/polisher: 3500-4500 RPM.

- please don't use with high speed grinder/polisher.

-with water feed hole, can be wet use.