blast furnace tapping hole drilling tools.
1) Drill rod together with the whole steel drill bit by welding connecting
This tools are simple produced and have within our product range the most competitive price.It can be used for drilling of short and not difficult to drill tapping holes with soft tap hole clay and no inclusion of slag or iron.
2)Threaded Drill rods with threaded the whole steel drill bits
The drill bit makes a clean hole with a constant diameter from beginning to end. The bit is made from wear resistant cast steel and interchangeable with different drill rods.
we can offer H25, R28.5,R32,B32,T38 Thread tap drill bits from 32mm-152mm,coupling,adaptor and Rod etc.
H25 thread :Cross bits and X typebits:diameter:32mm-152mm:
H25-R32 Tap hole rod.Lenth:2000mm-5000mm
R32 Cross bits 45mm-152mm,
R32-R32 drill rod:length 3000mm-6000mm
T38 thread, Cross bits 64mm-165mm ,
T38-T38 DRILL ROD 2000mm-6000mm