Key features

• •Remind: The router bit arbor is non threaded, inner hole diameter is 7/8"-5/8" (washer included). We also attached one set of lock ring nuts and wrench, to ensure all grinder or polisher with 5/8"-11 thread spindle can use this router bit.
• •(a) 1 Piece of B5 (3/16" / 5mm) for 5mm / 3/16 Inch high / thick granite marble concrete quartz glass countertop / vanity top edge bullnosing Diamond Brazed Router Bit to do Radius / Half / Demi / Roundover shape bullnose. The inner hole of this router bit is 7/8" to 5/8". it works with grinder or polisher with 5/8"-11 Thread spindle. Important Remind: Please make sure that your grinder or polisher speed is below 5000 RPM when using with it.
• •(b) One Lock Ring Nuts and wrench set (the pair of lock ring nut is necessory to attach the router bit to your 5/8"-11 thread spindle grinder / polisher). (c) 1 Piece of 4" Aluminum Velcro Backer / Pad Holder (5/8"-11 Thread arbor).
• •(d) 1 Piece of 4" Diamond Turbo Grinding cup wheel working layer (attach it to the aluminum backer to use) for stone concrete. (e) 1 Piece of 4" Professional Glaze Buffer (it brings mirror like polished result to stone granite marble).
• •(f) 8 Pieces of Diamond 4" Polishing Pad for granite concrete marble stone travertine: 2 X Grit 50, 1 X Grit 100 200 400 800 1500 3000.