NES1008 Internal Rethreading Kit: 5/16" to 1-1/4" (8-32mm)
NES1007 Internal Rethreading Kit: 5/16" to 13/16" (8-20mm)
NES1000 External Rethreading Kit: 5/32" to 1-1/2" (4-38mm)
Flat Abrasive Tapes - Silicon Carbide
Flat Abrasive Tapes - Crocus