In F37 collets (DIN 1536E), the d dimension is 37 millimeters. This collet gets its name from this dimension. The A dimension is 47 millimeters and the B dimension is 40 millimeters. The K angle is 16 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.
F37 collet (DIN 1536E) 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 F37 collets.