Stainless body, durable, maintain stability. Water spray, LED handpiece integrate E-generator. Unique electric generator, just a little air can generate sufficient power. Chuck Type: Push Button. Working pressure: 0.25 Mpa to 0.3 Mpa. Speed: 280,000-350,000R. Hole: 2 Holes / 4 Holes. If you are planning on combining your items, please make sure that you wait until ALL auctions have ended before you visit the checkout. All items must be paid within 7 days. If the item you received is damaged or defective, Please leavemessage for us immidately. Our guarantee does not cover accidental damage or wear of product caused by customer. Thank you very much for your understanding! Didn’t receive the reply in time? Didn’t receive goods over three month? Under normal circumstances, the transport time of the United States is 7-14 days, and about 25 days for Europe, 30-35 days for Australia, 50-60 days for South America time. How can solve the problem in your 100% happy way? Any problem please emails me on time. No matter any problems I will help you in the communication with you to find a best solution.