T38 Blast Hole Rock Drill Rods Shape Customized With Good Low Temperature Toughness

Hexagonal cross sections rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rods and are normally used in extension drilling applications. With the longer steel tending to be larger in diameter, conventional extension steel is characterized by a duplicate thread on each end of the steel.

Material: Tungsten carbide and high strength alloy steel

Processing: CNC milling and proprietary heat treatment process

High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance

Type: Hex. Drifter Rod, Extension Rod, Speed Rod, MF-Rod

Color: Based on Customer requirements

Thread Rock Drill Rods are used in drifting, tunneling, long-hole drilling, bench and production drilling industries. These rods are produced with round or hexagonal sections in all common thread designs, and in Male/Male (M/M) or Male/Female (M/F) connections. All our drifting and extension drill rods are heat-treated with carburization or high frequency, combined with phosphorization.

T38 Blast Hole Bench Drilling Extension rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole is usually named flushing hole, used for transmitting water or air during drilling. The threads can be used for connecting couplings, shanks, couplings or bits.

For extension rods, common thread types include R22, R25, R28, R32, R3212, R38, T38, T45, T51, ST58, T60, with lengths available from 600mm to 6400mm typically.