All steel cross bit size :30mm,38mm, 40mm,43mm,45mm,51mm,57mm.
Threaded connect type is :R25, R32.
All steel cross bit is applicable for slope protection works which rock hardness is f4 max. And also used for drilling iron notch of blast furnace.
We can manufacture other sized all steel cross bits, which tapering degree & thru-hole diameter, connected thread type, shape and appearance could be designed and made strictly according to our clients’ special requirement