OEM production as per your demand
Type:Low air pressure,Medium air pressure,High air pressure
Connect thread:API 2 3/8"REG,API 3 1/2"REG,API 4 1/2"REG,API 6 5/8" REG
Connect with DTH bit:Same shank,DHD 340/350/360/380,QL 40/50/60/80
Please ask detailed and specific
questions about Pricing, Minimum Order Quantity, Delivery Timelines etc. Detailed Messages
result in prompt responses.