no 3 grit stone router bits

{"cid":"91165061","title":"140mm OD Electroplated Diamond Blade Router Bits Precise Balanced Coarse grit","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6c\/4a\/feae4bc28edfa00e51a629e4eaec-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"Johnson Tools","Model Number":"DRW140MM","Minimum Order Quantity":"Negotiate","Delivery Time":"15 work days","Certification":"SGS,GB","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union,Paypal","Supply Ability":"10000pcs per month","Packaging Details":"Carton box","Product Name":"Drum Wheels Stone Router Bits for Stone Edging","Out Diameter":"140mm","Material":"Diamond","Inner Hole":"32mm","Height":"120mm","Usage":"Stone\/Granite\/Marble","Processing technology":"Electroplated","Features":"Precise Balance and High Efficient","Grit Size":"Coarse \/ Medium \/ Fine"}}

{"cid":"91220725","title":"Granite Marble Engraving Stone Diamond Router Bit Grit 30 -60 Vacuum Brazed Bits","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/78\/70\/cd4f8e0969eb576ae891ba39381a-200x200-1.jpg","attrs":{"Price":"$4.99\/pieces 10-99 pieces","Brand Name":"Linsing","Model Number":"LSS292","Minimum Order Quantity":"10 pieces","Warranty":"warranty","Customized support":"OEM","Place of Origin":"shangrao","Application":"granite marble engraving","machine":"CNC machine","Feature":"Sharp and Wear Resistence","grit":"30#-60#","workmanship":"Vacuum brazed","diamond tips":"3mm\/4mm\/6mm\/8mm","shank diameter":"6mm\/8mm\/10mm\/12mm","diamond working length":"20mm\/25mm\/30mm\/40mm\/50mm\/60mm","Total length":"70mm\/80mm\/100mm\/120mm","MOQ":"50pcs","Packaging Details":"waterproof and damageproof standard packaging
carton box with logo
as the customer's requirement","Port":"China all sea port","Supply Ability":"10000 Unit\/Units per Week"}}