UNIDRILL interlocking kelly bar for bore pile drilling job in construction

UNIDRILL interlocking kelly bar for bore pile drilling job in construction. The engineering builder knows that good drilling tools, eg, kelly bars, drilling buckets, usually play important roles during foundation construction. UNIDRILL kelly bar can be used in one construction site for many years since its durable product quality, this could guarantee the projects goes smoothly and improve the working efficiency. Interlocking kelly bar and friction kelly bar manufactured by UNIDRILL factory are highly praised by clients both at home and abroad for its good user experience. UNIDRILL interlocking kelly bar for bore pile drilling job in construction.