This package / auction carries (a)-(h):
(a) 1 Piece of 1 3/8" / 35mm (Metal-Filled, 1 5/8" Height) Diamond Grinding/Polishing Drum Wheel (5/8"-11 thread arbor). drum wheel makes grinding of the sink hole smoother. 

(b) 1 Piece of 1 3/8" / 35mm diamond core bit / hole saw to do granite concrete travertne quart hole cutting (5/8"-11 thread arbor).

(c) 1 Piece of 4" Diamond Ultra Thick and Ultra Wide Segment Turbo Row Grinding Cup Wheel (with 5/8"-11 thread arbor).

(d) 1 Piece of 5" Diamond Convex Blade for circle shape cutting (inner hole diameter is 7/8"-5/8", since washer/spacer included).

(e) 1 Piece of 4" Polishing Pad Aluminum Backer (5/8"-11 Thread arbor. 

(e) 12 Pieces of 4" Diamond Polishing Pad for granite marble concrete:

2 X Grit 50 100 200 400, 

1 X Grit 800 1500 3000 6000.

(g) 1 Piece of V20 (20mm / 3/4")  Diamond Brazed Full Bullnose Router Bit/Profile Wheel (5/8"-11 thread arbor).

(h) one 4 GB USB, it includes two video, one of it is "How to Fabricate Granite countertop DIY Undermount sink", the other is "How to Fabricate Granite Countertop DIY, Profile & Polish).