Parlec 40 Taper 1/4″ Bore Dia. 1.75″ Gage Line V Flange End Mill Adapter Review May 22, 2018August 29, 2018 - LoudMandarin Parlec C40-25Em1 ,Cat40 Taper Shank End Mill Holderhole Dia : 1/4″Nose Dia : 0.88″Projection : 1.75″