In F48 collets (DIN 173E), the d dimension is 48 millimeters. This collet gets its name from this dimension. The A dimension is 60 millimeters and the B dimension is 50 millimeters. The K angle is 15 degrees.
As Erveysa, we grind the above-mentioned dimensions precisely. Again, we grind the inner diameter dimension, which is the diameter that holds the material, precisely.
F48 collet (DIN 173E) is ground with a precision of 0.01 mm in diameter 10 millimeters.
In our ultra-precise collet production, we produce with a precision of 0.008 mm in diameter 10 mm.
If desired, we can open a thread on the inside of F48 collets.