Drilling tools for construction industry

Roller cone bits

Bit 393,7 (15 1/2) TCN123
Product line
Techno
Diameter (mm)
393,7
Diameter (dm)
15 1/2
IADC
123
Connecting thread API
Pin 7 5/8 Reg
Manufacture
VBM
Bit 444,5 (17 1/2) TCN123
Product line
Techno
Diameter (mm)
444,5
Diameter (dm)
17 1/2
IADC
123
Connecting thread API
Pin 7 5/8 Reg
Manufacture
VBM

Bit 120,6 (4 3/4) TCNP547
Product line
TechnoPro
Diameter (mm)
120,6
Diameter (dm)
4 3/4
IADC
547X
Connecting thread API
Pin 2 7/8 Reg
Manufacture
VBM
Bit 139,7 (5 1/2) TCNP527K
Product line
TechnoPro
Diameter (mm)
139,7
Diameter (dm)
5 1/2
IADC
527X
Connecting thread API
Pin 2 7/8 Reg
Manufacture
VBM
Weight (kg)
13,5
Bit 139,7 (5 1/2) TCNP637K
Product line
TechnoPro
Diameter (mm)
139,7
Diameter (dm)
5 1/2
IADC
637Y
Connecting thread API
Pin 2 7/8 Reg
Manufacture
VBM

Volgaburmash and Uralburmash are Russia’s largest companies producing rock-cutting tools