Din 338 standard HSS 4241 roll forged Twist Drill Bits, it is the normal quality, efficiency for soft Metal and plastic, aluminum. We have different process: fully ground, roll forged and edge ground. DIN338, DIN340, DIN1897, DIN345, Metal Drilling Size:
Rotary TableWe supply field proven rotary table applicable to most rough site conditon. API 7K certified rotaty table with 12 months guarantee.Widely used in Ruassian, Middle east and Southeast Asian oilfiled market.