Tenders for Supply of 49 High Speed Valve Less Dth Hammer Mission 4? Sandvik Make Part No. Rh4m098m1n20001 Or Equivalent. Q3 115 Mm Dia. Drill Bits Suitable For Hard Rock & High Speed Valve Less Hammer Mentioned Under Lot? 1 Q3 Drill Pipe Extension Rod Sandvik Part No. 52-089-10508619 Or Equivalent. Suitable For Furkwa Make Q3