140#
jin xin
PDC sizes：1613（It can be customized according to the rock hardness）
Common drill bit sizes:115mm-250mm
The drill bit is connected to the drill pipe thread, which can be customized and machined
PDC four-wing spiral arc angle coreless drill bit
Product Information:
1. wear resistance
2. high efficiency
3. long service life
4. direct selling with reasonable price
5. MOQ: 1pcs for checking the quality
6.customized order is available
PDC sizes：1613（It can be customized according to the rock hardness）
Common drill bit sizes:115mm-250mm
The drill bit is connected to the drill pipe thread, which can be customized and machined
PDC four-wing spiral arc angle coreless drill bit
Product Information:
1. wear resistance
2. high efficiency
3. long service life
4. direct selling with reasonable price
5. MOQ: 1pcs for checking the quality
6.customized order is available
