API power tools/steel tooth drill bit/high quality drill bit

  

1. Steel Tooth Tricone Bit for Soft Formation

TYPE: G13 (IADC----131)
APPLICABLE FORMATION: Soft Formations with low compressive strength: Clay rock, Gypsum, Shale, soft Limestone, Salt.
HARDNESS OF ROCK: f<2
WEIGHT RECOMMEND: 20-35kg/mm (Dia Bit) (1100-2000 lb/in)
ROTARY SPEED: 80-150rpm.


2. Steel Tooth Tricone Bit for Medium Formation

TYPE: G23 (IADC----241)
APPLICABLE FORMATION: Hard Sandstone, hard Shale, hard Gypsum, and soft Limestone with low compressive strength
HARDNESS OF ROCK: f<2
WEIGHT RECOMMEND: 20-63kg/mm (Dia Bit) (1100-3500 lb/in)
ROTARY SPEED: 70-80rpm.


3. Steel Tooth Bit for Hard Formation

TYPE: G33 (IADC----311)
APPLICABLE FORMATION: Hard sandstone, Granite, Quartzite, abrasive Shale with high compressive strength.
HARDNESS OF ROCK: f 5-8
WEIGHT RECOMMEND: 55-90kg/mm (Dia Bit) (3000-5000 lb/in)
ROTARY SPEED: 50-80rpm.


4. Steel Tooth Journal-sealed Bearings Bit for Hard Formation

TYPE: GHM33 (IADC-----311)
APPLICABLE FORMATION: Hard sandstone, Granite, Quartzite, abrasive Shale.
HARDNESS OF ROCK: f 3-6
WEIGHT RECOMMEND: 20-50kg/mm (Dia Bit) (1100-2800 lb/in)
ROTARY SPEED: 40-60rpm.