API12 1/4" Kingdream IADC127 Roller Steel Tooth Bits

API12 1/4" Kingdream IADC127 Roller Steel Tooth Bits 20years experience in drill bit manufacture API&ISO9001 certification

API12 1/4" Kingdream IADC127 Roller Steel Tooth Bits

As the professional supplier of rock bits in China,we can supply all kinds of rock bits,such as PDC bits,TCI bits,rock bits,tricone bits,single cone bits,multicone bits,steel tooth bits,insert tooth bits,roller bits,drill bits,drilling tools,etc.

Steel tooth tricone bits

For soft to medium formation drilling

Reliable bearing system

All surface and teeth are hard enhaced

 

114-117, 127Soft Formation Tooth BitsThe 114-117 bits are used to drill low-compressive strength, soft formation. Long projection tooth lengths are used on high offset cones 

to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear. On the softest bits type this hard facing 

completely covers the bit teeth.127Medium-Hard Formation milled Tooth BitsThe 127 bits are used to drill high-compressive strength, medium hard formations. Short projection teeth with reduced crest length 

are used in this series of bit designs. Durable hard facing is applied 

IADC Code	Applicable formation	Main characteristics of the bit	Recommended parameters
		Cutting structure	Normal WOB KN/mm(bit dia.)	Rotary Speed(rpm)
127	Very soft with low compressive strength and high drillability.such as shale,clay,salt bed and soft limestone,etc.	Hardfaced tooth surface and gage,high compact exposure,with gage compacts, and a row of trimmers is added between gage row and heel row.	0.35~1.05	120~50

 

API12 1/4" Kingdream IADC127 Roller Steel Tooth Bits