This is a used Boring Head in GREAT condition. Includes Parlec N50 NMTB 50 Adapter.
Distance Between Hole Centers: 1. Outboard Hole Boring Range: 2.375" to 5.125". Cross Hole Boring Range: 4.937" to 11".
Shank Thread - 1-1/2 - 18 tpi. Comes as shown in pictures.