... mining, marine engineering, shipping, petrol, electric power, etc.Boring bar is made of high-intensity alloy steel 42CrMo, and ... drilling, expanding hole, blind hole boring,etc.Drive option:Electric motorHydraulic motorFacing head:Model 1:Ø70-300mmModel 2:Ø80- ... cooperation with you!1. Select a Boring Bar2. Select a Feeding Stroke3. Select boring head diameter4. Select a Mounting option5. Select ...