20'' Iadc 217 Steel Tooth Tricone Drill Bit

 Bit Size

20''

 IADC Code

217

Series

HR

Tooth type

TCI/tungsten carbide insert

 Connection

 7 7/8 API REG PIN

Bearing

rubber sealed bearing

 Nozzle

 three jet nozzles

 Rotary Speed(rpm)

 100~60

 Weight on Bit(KN/MM)

0.4~1.0

Application

water well,oil   well,HDD,exploration,etc

Formation

Medium  formation with high compressive   strength such as medium soft shale,hard gypsum,medium soft limestone,soft formation with harder interbeds,etc.

(KN/MM)

(r/min)

(Bit Dia)

116  117

0.35~0.8

150~80

Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk etc.

136  137

0.35~1.0

120~60

Soft to mesium soft formations with low compressive strength and high drillability.such as medium soft shale,hard gypsum,medium soft limestone.medium soft sandstone soft formation with harder nterbeds,ect.

216  217

0.4~1.0

100~60

Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds ect.

246  247

0.4~1.0

80~50

Medium hard formations with high compressive strength,such as abrasive shale.limestone,sandstone,dolomite,hard gypsum,marble,ect.

417  437

0.35~0.9

150~70

Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk,gypsum,salt,soft shale,soft limestone,etc.

447

517  527

0.35~1.0

140~60

Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,soft shale.soft limestone,ect.

537  547

0.45~1.0

120~50

Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds,ect.

617  627

0.45~1.1

90~50

Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,ect.

637

0.5~1.2

80~40

Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect.

Hejian Hengji Bit Manufacture Co.,LTD  is specialized in manufacturing high quality rock bit since 2001,especially for tricone bit,PDC bit,hole opener,single cone bit and drag bit.With advanced CNC machines and R&D team and on-time delivery. we have kept our clients ahead of schedule and under budget by providing the highest quality tools at the best possible prices .

   We ship to more than 40 different countries and serve industries such as Oil & Gas, water well , Construction,Mining,  Horizontal Directional Drilling (HDD), Geothermal and Environmental. Our experienced staff is here to assist you with everything from choosing the right bit to shipping around the globe.

    Our goal is to provide our customers with the best quality tools, accessories and service in the industry. We are supported by many years of experience, trained professionals and a full machine shop.  Reduce the cost ,Speed the drilling ,Guarantee the safety is always our aim.  We have been always insist on"Hengji bit,focusing on quality".  

Main products

tricone bit(mill tooth and tungsten carbide insert tricone bit)

PDC bit(matrix body and steel body PDC bit)

hole opener(HDD rock reamer,barrel reamer,etc)

drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)

accessories(single cone,bit breaker,nozzle ,etc)