Coal Drill Bit

详情

1.Wide range of useage 2.High quality and best price 3.Long life and full model 4.Be certified by ISO***1 Product Description: Material: High manganese steel Processing type: Forging Use: Coal mining ISO ***1：***8 Specializes in producing and exporting all kind of drill tools Low price and supreme quality Carbide coal drill bit Coal drill bit/ coal bit: Applications: Apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc. Characteristics: 1. High wear resistance and impact-resistance toughness. 2. To repeat repair & greaning are not necessary, long drill life. 3. High efficiency could be promoted sharply in penetration of high-medium hard rock formation. 4. Labour intensity could be reduced. 5. Rock formation to be suitable t: F=***2 3 wings/ 2 wings Product description: The coal bits are mainly used in coal and mine drilling. ﹡We can manufacture all kinds of bits and shells according to customer's special requirement. Any requirement please contact us, we'll do the best service for you. Hope we can establish a good business relationship Colliery Drilling Tools Main Standard(mm) D H L M Thread joint *7 *4 *7 M*4� 1.5 *7 *4 *7 M*2� 1.*5 *8 *4 *0 M*2� 1.*5 *9 *2 *8 M*4� 1.5 *0 *0 *8 M*4� 1.5 *2 *2 *2 M*4� 1.5 *2 *6 *2 M*2� 1.*5