Dormer 4mm x 93 mm HSS Hand Reamer

HSS straight Flute hand Taper Pin reamer for opening out parallel holes and finishing pre-formed tapered holes.

Use on most ferrous and non-ferrous metals
Metric reamers to ISO/BS328/DIN9 standards have a 1-in-50 taper on diameter
Imperial reamers to BS328 standard have a 1-in-48 taper on diameter

ISO/BS328/DIN9