wear-resistance coal mining drill bit - all types

pdc coring bit/pdc petroleum bit/coal mining drill bit

our products are widely used in coal mining, oil/gas field, geological exploration, water conservarcy, power engineering, etc, advanced pdc oil bit has used in various oil fields in China as well as other regions in the world, 1.optimally designed bit profile for drilling soft to medium hard formations, 2. cutting structure is force balanced, bit blade is asymmetrically designed, spiral blade and are also designed so that the load on bit is balanced so that resulting better stability of the bit, 3. multiply types of high performance pdc cutters are strategically arranged on the bit for improve the service bit life.4. drylaulic systerm of bift is optimized used the cfd technology to enhance the cleaning and cool effects of the bit as well as the ability to effiectively prevent bit from balling, 5. erosion on the bit face is efffectively prevented by utilizing hardfacing material of high erosion resistan and applying advanced base metal enchancement technology

Types available

type typesizeAPI PIN SIZEWEIGHT(KGS) inchdia
8 1/2 M 1234AL8 1/2215.94 1/2 REG70
8 1/2 M 3235AL8 1/2215.94 1/2 REG70
8 1/2 M3235BLF8 1/2215.94 1/2 REG70
8 1/2 M2235L8 1/2215.94 1/2 REG70
8 1/2 M3236AL8 1/2215.94 1/2 REG70
8 3/4 M3235AL8 3/4222.34 1/2 REG72
9 1/2 M3235L9 1/2241.36 5/8 REG85
9 1/2 M3236L9 1/2241.36 5/8 REG85
12 1/4 M323512 1/4311.16 5/8 REG105

Notes:Non-standard also can be made as your requirements.