... to the number of disc can be divided into the single, double disc disc, three die and disc bit more.6 ... ,single drilling bit Size: 118 mm7,single drilling bit Type: YC517G8,single drilling bit Bearing: rubber seal9,single drilling bit Suitable ... journal bearing) HA (rubber sealed journal bearingaircooled bearing type Packing wooden box, steel box, or as your requirements Payment Term T ...