Uses : The bit is used for air drilling, e.g., for drilling operations in open coal mine, Iron mine and non-ferrous mine. ApplicableRanges : The bit

1. Chisel bits:Tapered chisel bits (taper 7, 12degree) , Mostly use for hand rock drill. We make them by alloy steel by forging and select suitable t

Button bits: 1. Tapered button bits (28mm, 30mm 32mm, 34mm, 36mm, 40mm, 42mm, 44mm and so on with different degree taper) 2. Thread Button Bits (33