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Very Important remind:
The 4 Inch blade in this package is for granite or marble or ceramic, thickness must be 10 MM or less.
This package carries (a)-(d):
(a) 1 Piece of B20 (20 mm / 3/4")
Radius / Roundover / Demi Bullnose) Diamond Brazed Router Bit / Profile Wheel for concrete / stone for 20 MM HIGH OR THICK STONE CONCRETE (with 5/8"-11 Thread arbor).
(b) 1 Piece of 5" Diamond Segmented Cutting Blade for stone concrete cutting (inner hole diameter is 7/8"-5/8").
(c) 1 Piece of 4" / 4 Inch / 105 mm Diamond Turbo Cutting Blade for granite marble ceramic, thickness must be 10 MM or less (inner hole diameter 7/8"-5/8").
(d) 1 Piece of 4" / 4 Inch Diamond Turbo grinding cup wheel for stone concrete travertine surface smoothing sanding (5/8"-11 Thread arbor).