Bill D
Diamond
- Joined
- Apr 1, 2004
- Location
- Modesto, CA USA
Never really used a boring head. I do not find info on head diameter relative to the bore size it can cut. I know the bar can be put in horizontally to make almost infinate size bore. But with say a 3" diameter head and a 5/8 bar what is the largest size vertical bore it can cut. I realize the smallest size is limited by the bar size but I do not find good info on the offset allowed. Or the amount the non centered vertical bar hole(s) is offset from the centerline.
Why buy a smaller head other then cost? As I see the geometry the head can not go into the bore if the bar is vertical. IOW the bore is smaller then the head unless the boring bar is horizontal.
Since most heads on ebay are 2-3 inches I assume that is a good size for a bridgeport.
Bill D.
PS: can you use a smaller bar for a smaller hole if you make a sleeve for it?
Why buy a smaller head other then cost? As I see the geometry the head can not go into the bore if the bar is vertical. IOW the bore is smaller then the head unless the boring bar is horizontal.
Since most heads on ebay are 2-3 inches I assume that is a good size for a bridgeport.
Bill D.
PS: can you use a smaller bar for a smaller hole if you make a sleeve for it?