6-60mm M35 HSS Step Drill Bit - SEB-STD-055

Model No.: HY211

Features: tricone bit , cone bit , steel tooth bit
Fast drilling speed.
open bearing
Reliable quality and reasonable price,

Model No.: VB-DT002

Features: 1. unitary saw blade, blade not easy to be spitted
2. cutting sharp
2. long service life
3. small gap and less scraps

Model No.: VB-DW004

Features: diamond tools
with special technology of diamond brazing, diamond hand profiling wheel has higher efficiency

Model No.: VB-DK004

Features: diamond tools
1. high efficiency
2. long working life
3. fast drilling speed

Model No.: VB-DW002

Features: diamond tools
with special technology of diamond brazing, diamond hand profiling wheel has higher efficiency

Model No.: 216

Features: button bit
1)Certified by ISO9001&API
2)Covers all IADC codes
3)Size:3 3/4"~26"
4)Used for well drilling

Model No.: HY6478

Features: TCI tricone bit
1.size range from 3 7/8" to 26"
2.Covers almost all IADC code.
3.Meet with API Spec7-1 Standard

Model No.: HY51745

Features: TCI tricone bit
1.size range from 3 7/8" to 26"
2.Covers almost all IADC code.
3.Meet with API Spec7-1 Standard

Model No.: HY637

Features: TCI tricone bit
1.size range from 3 7/8" to 26"
2.Covers almost all IADC code.
3.Meet with API Spec7-1 Standard

Model No.: HY130096

Features: steel tooth Tricone bit
1.for soft to medium hard formation
2.reliable bearing system for well drilling
3.API,ISO certificate

Model No.: PDC core drill bit QX series

Features: 1.Diamond PDC core bit Manufacurer
2.PDC core drill bit high drilling efficiency for geological,oil/gas,mining core drilling

Model No.: Diameter(in):3-7/8,8-1/2,9-7/8,12...

Features: 1.Oil field PDC drill bit
2.PDC drill bit IADC M123/122,M223/243/232,M323/333,M423,M841
3.For oil/gas/petroleum/oil field