Dormer circular split dies can be used by hand or machine. because the die has a split it can be adjusted slightly to provide a thread slightly smaller or larger than the norm. Metric coarse adjustable dies.
application: for production of components less than three times diameter in length.
tolerance: 6g adjustable
chamfer lead: two threads
surface treatment: bright
material: hss
- high speed steel
bs 1127:1950.