Starrett® 831D Half Ball Small Hole Gage, 0.4 - 0.5 in, 3-1/2 in L
Item #BC062874
Starrett® Small Hole Gage, Half Ball, Series: 831, 0.4 - 0.5 in, 3-1/2 in L
- Precision ground radius on each gage provides two-point contact for maximum accuracy
- Permits use in shallow holes, slots and recesses
- Well balanced
- More accurate measurements
- Hardened ball measuring surface with two-point contact
- Half ball with a flat bottom
- Smooth, sensitive adjustment
- Adjustment of the gage beyond their range is restricted by a safety stop that prevents breakage