Model

TOP DRILLBITS:Button/Insert tooth bit Milled/Steel tooth bit

IADC CODE

116 117 12 6127 136 137 216 217 226 226 316 317 326 327 336 337 115

125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347

417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525

625 635 416 427 436 446 447 516 526 537 547 516 536 535

available sizes:

From 2 7/8 to 26"

larger sizes for hole opener bit ,reamer bit

advantage

most favourable price and best qualtity

bearing type:

sealed bearing and non-sealed bearing

HJ(metal sealed journal bearing)

HA (rubber sealed journal bearing

aircooled bearing type

Formation or layer

soft ,medium soft ,hard,medium hard,very hard formation

Button size (extra features)

Button bit,saw teeth

1) Y-Conical teeth 2) X-chisel teeth

3)K- wide teeth

4)G- Gague protection

Material

Alloy steel ,carbide

Packing

Wooden case or steel case

Payment terms

T/T,L/C,Western union

Delivery terms

By sea or by air

Delivery time

Within 3 to 7 days

Market

Canada, USA,Middle east ,Africa,Europe

Application

petroleum&gas ,water well ,mining and tectonic industries ,oil field,

construction,geothermal, directional boring, and underground

foundation work