RODS - BLAST HOLE
fabricated Drill Rod design features tool joints made from EN 19 Condition Steel
welds are made with selected CO 2 wire and are pre-heated to remove residual welding
stresses. Welds are machine blended to assure precision joining. Axial alignment and
concentricity of the fabricated rod assembly are held to a close tolerance.
Wrench slots and flats are milled to suit the requirements
of the customer. All rotary shouldered connections are heat treated for protection against
galling in the break-in period.