Important Remind: Pad Holder’s max capacity / velocity is 5000 RPM. Please do not use it with high speed grinder or polisher. E5 router bit is for 3/16″ / 5MM Thick or High stone concrete travertine edge shaping. (a) 1 Piece of E5 (5mm / 3/16″ Bevel / 45 Degree Bullnose) Diamond Brazed Router Bit/Profile for 5MM Thick or High Stone Concrete (5/8″-11 Female Thread arbor). (b) 1 Piece of 1 3/8″ / 35 MM Diameter Zero Tolerance Diamond Drum Wheel (5/8″-11 female thread arbor). Do very good job for cutting of the stone, concrete sink hole. (c) 1 Piece of 1 3/8″ / 35mm Diameter Diamond core bit / hole saw for stone concrete travertine hole cutting (5/8″-11 Female Thread arbor). (d) 1 Piece of 4 Inch Pad Holder (its arbor is 5/8″-11 Female Thread). Important Remind: Pad Holder’s max capacity / velocity is 5000 RPM. Please do not use it with high speed grinder or polisher. (e) 1 Piece of 4 Inch Diamond Glaze Buffer (it brings mioor like polished result to natural granite marble), 7 Pieces of 4 INCh Diamond Polshing pad for stone concrete travertine: 1 X Grit 50 100 200 400 800 1500 3000.