HS Code 82079010 Production Capacity 10000PCS/Month Product Description Diamond Drill Bit For Granite & Marble & Concrete etc. High effciency.long life and fast drill speed. Diameter Segment size Segment no. Connection 20mm 19X3.0X9.0mm 2 (M14/M16/1/2"BSP5/8"-11) 25mm 14X3.0X9....
rotary supports and other workpieces. It can be used for internal cold high-speed drilling with hard alloy drill bit or external cold drilling with high speed steel twist drill bit. Drilling depth of 10D (10x diameter) can be achieved with special crown drill bit. The...