Dormer Dienuts are only used by hand & are hexagonal shaped for use by a spanner. Dienuts are used to reclaim damaged threads or to clean up existing threads. Metric Coarse Dienuts Application: For reclamation of screw threads. Tolerance: 6g Chamfer Lead: Two Threads Surface treatment: Bright
Material: HSS
- High Speed Steel BS1127:1950 Size 10mm x 1.50