Dormer Pramet B3343 0052235 expanding hand reamer with 5 flutes, HSS construction, and internal designation N3. Designed for precision reaming of pre-drilled holes, this reamer provides smooth, accurate finishes in a variety of materials. The expanding design allows for fine adjustment to achieve exact hole sizes, making it suitable for maintenance and toolroom applications.

Adjustable hand reamer with replaceable blades (B335) and a square drive, diameter range 11.0 - 12.0mm number 3 with an overall length of 125mm and long replaceable blades with 9mm taper lead, according to DORMER standard for light duty sizing of uninterrupted holes, HSS with bright finish for machining free machining, plain carbon and alloy steel, grey and malleable cast-iron, wrought and cast aluminium and copper or copper alloys.