Drill Bits For Aluminium has cobalt the same mining process as iron
6911 products . About 55% of these are drill bit, 1% are mining machinery parts, and 1% are orthopedic surgical instruments. . cobalt twist drill bit for stainless steel ,aluminum drilling .. The same hole can be made faster and using less power. . When our drill bits rotate with high speed,the shake degree is less than 0.1MM.
ZGCC cemented carbide insert, View carbide insert, Great Wall .
Complete & strictly QC system throughout the manufacturing process. 4. . ZGCC's carbide was recognized by market, it widely used for Chinese big project,such as subway,high speed rail,tunnel,mining and so on.At the same time,many big projects of the South africa,America,European and Austria also choose our carbide.Get Price