Barcor Digital Chamfer Gage 90-127°, Various SizesDigital Chamfer Gage The BARCOR Electronic CHAMFER GAGE is a precision instrument designed specifically to measure the top diameter of chamfers, countersinks, center drills, or tapered holes. Simply press the Electronic CHAMFER GAGEs spring loaded Gaging Plunger into the piece being measured and directly read the size in . 0002" or . 005mm with the SAME gage. Or, at the press of a button, change to Comparative Mode from a known standard. Features