A new half-round type is now available in the parallel single “Unya” series, which has high machinability and makes it difficult for loose parts to whiten.
The half-round side is suitable for cutting that makes the best use of its shape, such as machining the inverted R surface. Since the flat surface also has parallel stitches, you can use it as a flat file.
The pitch of the file is narrower than that of MF13 Unya Parallel Single Flat (thin).