IADC: 715 is TCI sealed roller bearing bit with gauge protection for extremely hard and abrasive formations. Insert shapes and grades designed to provide long life and high productivity Longer service life for decreased machine downtime Air-cooled bearing performance optimized for high hours by advanced metallurgy, proportioning of components, and optimized geometries

Basical Specification
IADC Code	IADC715
Size of Rock Bit	9 7/8”	10 5/8 ”
	251mm	270mm
Thread Connection	6 5/8” API REG PIN
Product Weight:	65KG	74KG
Bearing Type:	Roller-Ball-Roller-Thrust Button/Sealed Bearing
Circulation Type	Jet Air
Operating Parameters
Weight on Bit:	39,500-59,250Lbs	42,500-63,750Lbs
Rotary Speed:	90-60RPM
Air Back Pressure:	0.2-0.4 MPa
Ground Description:	Hard, well-compacted rocks such as: hard silica limestone, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores, and granite.

BIT DESCRIPTION: IADC:715 Ovoid on gage and inner rows. Designed for extremely hard and abrasive formations with high compressive strengths such as magnetite quartzite, quartzite, granite. Application: 55,000-66,000Psi Mining tricone bit is one of the main tools for blast hole and well drilling. Its life span and performance whether suitable for drilling or not, that has an great influence about the quality, speed and cost of drilling project. The rock breakage by the tricone bit which used in mine is working with both the impact of teeth and the shear caused by slippage of the teeth, which bring high rock breaking efficiency and the low operation cost. The tricone bits developed and manufactured by our company are mainly used for large-scale open-pit mining, such as open-pit coal mines, iron mines, copper mines and molybdenum mines, also the non-metallic mines. With the increasing in variety of type, it's also widely used in quarrying, foundation clearing, hydrogeological drilling, coring, tunneling in railway transportation department and shaft drilling in underground mines.