Dormer Dienuts are used to reclaim worn or damaged threads in most materials.

Metric Coarse Dienuts.

Application: For reclamation of screw threads.

Also available in MF, UNC, G(BSPF) thread forms.

Tolerance: 6g.
Chamfer Lead: Two Threads.
Surface treatment: Bright.
Material: HSS - High Speed Steel.

BS1127:1950

Size: 20mm x 2.50.