DIN 9 HSS Hand taper pin reamers High speed steel. Taper 1:50 for taper pins holes. Size: 3mm-30mm. DIN 9 HSS - HAND-TAPER PIN REAMER - 1/50.Hand reamer for taper holes made in HSS, DIN 9/B.Taper 1:50 for taper pins holes. 1mm Taper per 50mm (1 in 50).Elicoidal flutes, cylindrical shank.Size: 3mm-30mm. Hand reamer taper pin reamer DIN9 High speed steel